2019年12月27日星期五

Is it better to use spiral steel pipe or straight seam steel pipe for drainage pipe?

Is it better to use spiral steel pipe or straight seam steel pipe for drainage pipe?
Spiral steel pipe is a spiral seam steel pipe welded by automatic double wire and double submerged arc welding process. The spiral steel pipe sends the strip steel into the welding pipe unit. After the rolling of multiple rollers, the strip steel gradually rolls up to form a circular tube billet with an open gap. The reduction amount of the extrusion roller is adjusted to control the weld seam gap at 1~3mm and level the welding mouth at both ends.
Generally speaking, spiral steel pipe is used in drainage pipes, because the strength of spiral welded pipe is generally higher than that of straight seam steel pipe, and the welded pipe with larger diameter can be produced with narrow blank, and the welded pipe with different diameter can also be produced with the same width of blank. However, compared with the same length of straight seam pipe, the weld length and production speed are lower. Therefore, the smaller diameter welded pipe mostly adopts straight seam welding, while the larger diameter welded pipe mostly adopts spiral welding.
API 5L Spiral Steel Pipe
Also has generally DN350 above, the tube diameter is big why USES the spiral tube instead of the straight seam tube? Because the weld of spiral steel pipe is spiral, the pressure of liquid will be distributed on all sides of the pipe to enhance the strength of the pipe. If the use of straight seam steel pipe, the general large pipe is rolled up with steel plate for direct welding, the need for large steel plate, greatly increase the production difficulty, so the larger diameter will use spiral pipe. As a professional spiral pipe manufacturer, we have several spiral pipe production lines, which can produce spiral welded pipes with diameter of 219-2820mm and wall thickness of 6-28mm. The price is affordable and the quantity is large.

2019年12月21日星期六

Eight characteristics of precision steel pipe

Eight characteristics of precision steel pipe
1. Smaller outside diameter.
2. High precision can be used for small batch production.
3. Cold drawing finished products have high precision and good surface quality.
4. The cross area of steel pipe is more complex.
5. Steel pipe performance is better, metal is relatively dense.
custom Oil Line Pipe factory China
6. Cold drawing finished products have high precision and good surface quality.
7. The cross area of steel pipe is more complex.
8. Steel pipe performance is better, metal is relatively dense.
Calculation formula of precision steel pipe :[(outer diameter - wall thickness)* wall thickness]*0.02466=kg/ m (weight per meter)
Tell us your requirements for precision steel pipe, and we will complete all the rest, which will make you satisfied.
As a custom Oil Line Pipe factory China, we supply high quality Welded Steel scaffolding pipe, if you have any demand for our products, just feel free to contact us.

2019年12月18日星期三

Production process of large diameter welded pipe

Large-diameter welded pipe is a spiral seam steel pipe, which is made of strip steel coil as raw material, often formed by warm extrusion, and welded by automatic double-wire and double-sided submerged arc welding process. The spiral steel pipe sends the strip steel into the welding pipe unit. After the rolling of multiple rollers, the strip steel gradually rolls up to form a circular tube billet with an open gap. The reduction amount of the extrusion roller is adjusted to control the weld seam gap at 1~3mm and level the welding mouth at both ends.
Following the Large Diameter Steel Pipe manufacturer China would like to share with us.
Production process of large-diameter welded pipe:
(1) raw materials: strip coil, welding wire, flux. Rigorous physical and chemical examination must be carried out before investment.
(2) the end of the strip shall be butt joint by single wire or double wire submerged arc welding. After the steel pipe is rolled, automatic submerged arc welding shall be adopted.
(3) before forming, the strip is smoothed, trimmed and planed, its surface is cleaned and transported, and its edges are bent.
(4) electric contact pressure gauge is adopted to control the pressure of oil cylinder on both sides of the conveyor, ensuring the smooth transportation of the strip.
(5) external control or internal control roll forming.
(6) weld gap control device is adopted to ensure that weld gap meets welding requirements, and pipe diameter, wrong edge quantity and weld gap are strictly controlled.
Large Diameter Steel Pipe manufacturer China

SSAW LSAW Carbon Welding Steel Pipe

(7) both internal and external welding are performed by single or double wire submerged arc welding with American Lincoln welding machine, so as to obtain stable welding quality of the Large Diameter Spiral Steel Pipe.
(8) all welded welds are inspected by online continuous ultrasonic automatic flaw tester, ensuring 100% non-destructive testing coverage of spiral welds. If there are defects, automatic alarm and spraying mark, production workers according to this at any time to adjust the process parameters, timely elimination of defects.
(9) use an air plasma cutting machine to cut the steel tube into a single root.
(10) after cutting into a single steel pipe, each batch of steel pipes shall carry out a strict first inspection system to check the mechanical properties of welding seams, chemical composition, dissolution status, surface quality of steel pipes and through nondestructive inspection to ensure that the pipe production process is qualified, before it is officially put into production.
(11) where there is continuous acoustic inspection mark on the welding seam, manual ultrasonic and X-ray reexamination shall be conducted. If there is a defect, it shall be repaired and then nondestructive inspection shall be conducted again until it is confirmed that the defect has been eliminated.
(12) the tube where the butt welding seam of strip steel and the t-joint intersecting spiral welding seam are located shall all be examined by X-ray television or film.
(13) each steel pipe is tested by hydrostatic test, and the pressure is radial sealed. The test pressure and time are strictly controlled by the microcomputer testing device of steel pipe water pressure. Automatic printing record of test parameters.
(14) the pipe end is machined to control the verticality of the end face, groove Angle and blunt edge accurately.

2019年12月12日星期四

Method of removing embroidery of straight seam steel pipe

Method of removing embroidery of straight seam steel pipe:
Welded steel pipe is also known as welded pipe, is made of steel plate or strip after curling forming steel pipe. Welded steel pipe production process is simple, high production efficiency, variety of specifications, less equipment, but the general strength is lower than seamless steel pipe. Since the 1930s, with the rapid development of continuous rolling production of high quality strip steel and the progress of welding and inspection technology, the quality of welding seam has been continuously improved. Welded steel pipe is divided into straight welded pipe and spiral welded pipe according to the form of welding seam.
The blank used for welding steel pipe is steel plate or strip steel, which can be divided into furnace welded pipe, electric welding (resistance welding) pipe and automatic arc welding pipe due to different welding processes. Due to the different welding forms, it is divided into two types: straight welded pipe and spiral welded pipe. Because of its end shape is divided into circular welded pipe and shaped (square, flat, etc.) welded pipe. The welded pipes are divided into the following varieties due to their different materials and USES:
GB/ t3091-1993 (galvanized welded steel pipe for low-pressure fluid transport). Mainly used for water, gas, air, oil and heating hot water or steam, such as the general lower pressure fluid and other purposes. Its representative material is Q235A grade steel.
GB/ t3092-1993 (galvanized welded steel pipe for low-pressure fluid transport). Mainly used for water, gas, air, oil and heating hot water or steam, such as the general lower pressure fluid and other purposes. Its representative material is: Q235A grade steel.
Method of removing embroidery of straight seam steel pipe

Construction Welded Steel Pipe

GB/ t14291-1992 (welded steel pipe for fluid transport in mines). It is mainly used for straight seam welding steel pipe for mine pressure wind, drainage and shaft gas discharge. Its representative material Q235A, B grade steel. Large diameter electric welded steel pipe for low pressure fluid transport. Mainly used for conveying low pressure fluid such as water, sewage, gas, air, heating steam and other USES. Its representative material is Q235A grade steel.
(welded stainless steel pipe for mechanical construction). Mainly used for machinery, automobile, bicycle, furniture, hotel and restaurant decoration and other mechanical parts and structures. Its representative materials are 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, etc.
GB/ t12771-1991 (welded stainless steel pipe for fluid transport). Mainly used for conveying low pressure corrosive medium. The representative materials are 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, etc.
Direct seam welded pipe production process is simple, high production efficiency, low cost, rapid development. The strength of spiral welded pipe is generally higher than that of straight welded pipe. The welded pipe with larger diameter can be produced with narrow blank, and the welded pipe with different diameter can also be produced with the same width of blank. However, compared with the same length of straight seam pipe, the weld length increases by 30~100%, and the production speed is lower.
Therefore, the smaller diameter welded pipe mostly adopts straight seam welding, while the larger diameter welded pipe mostly adopts spiral welding.

2019年12月6日星期五

Classification of welded steel pipes

According to the production method, the welded steel pipes can be divided into two categories: seamless steel pipes and welded steel pipes.
1. Seamless steel pipe can be divided into: hot rolled seamless pipe, cold drawn pipe, precision steel pipe, hot expanding pipe, cold spinning pipe and extrusion pipe, etc. Seamless steel tube with high quality carbon steel or alloy steel, hot rolling, cold rolling (pull).
2. The welded steel pipes are divided into furnace welded pipes, electric welded pipes (resistance welded pipes) and automatic arc welded pipes due to different welding processes. The welded pipes are divided into straight welded pipes and spiral welded pipes due to different welding forms. Welded steel pipe is made of tubular steel plate welded to seam or spiral seam. In terms of manufacturing method, it is divided into welded steel pipe for low-pressure fluid transportation, spiral welded steel pipe, direct welded steel pipe and electric welded pipe. Seamless steel pipe can be used for all kinds of liquid and gas pipelines. Welding pipes can be used for water pipes, gas pipes, heating pipes, etc.
According to the material classification: steel pipe according to the material (that is, steel) can be divided into: carbon pipe and alloy pipe, stainless steel pipe. Carbon pipe can be divided into ordinary carbon steel pipe and high quality carbon structure pipe. Alloy pipe can be divided into: low alloy pipe, alloy structure pipe, high alloy pipe, high strength pipe. Bearing pipe, heat and acid resistant pipe, precision alloy (such as cutting alloy) pipe and high temperature alloy pipe.
According to the type of connection: steel pipe according to the type of pipe end connection can be divided into: light pipe (pipe end without thread) and thread (pipe end with thread). Car silk tube is divided into: ordinary car silk tube and tube end thickening car silk tube. Thickening thread can also be divided into: outside the thickening (with external thread), inside the thickening (with internal thread) and inside and outside the thickening (with internal and external thread) and so on. If the thread type can also be divided into: ordinary cylindrical or conical thread and special thread, etc. In addition, according to customer needs, the car wire tube is generally equipped with pipe connector delivery.
According to the coating characteristics classification: steel tube according to the surface coating characteristics can be divided into: clarinet (not coated) and coated pipe. The coating tube has Galvanized Steel Pipe, aluminum tube, chrome tube, aluminized tube and other alloy layer pipe. Coating tube has outer coating tube, internal coating tube, internal and external coating tube. Commonly used coatings are plastics, epoxy resin, coal tar epoxy resin and various glass - based coatings.
Galvanized Steel Pipe
Galvanized Steel Pipe
By use:
1. Use pipes. Such as: water, gas pipe, steam pipe seamless pipe, oil transport pipe, oil and gas trunk pipe. Agricultural irrigation faucet with pipe and sprinkler irrigation pipe.
2. Pipes for thermal equipment. Such as the general boiler with the boiling water pipe, superheated steam pipe, locomotive boiler with the heat pipe, large smoke pipe, small smoke pipe, arch brick pipe and high temperature and high pressure boiler pipe.
3. Pipe for mechanical industry. If aviation structure tube (round tube, elliptic tube, flat elliptic tube), automobile half axle tube, axle tube, automobile tractor structure tube, tractor oil cooler with tube, agricultural machinery with Square & Rectangular Pipe, transformer with tube and bearing with tube.
4. Petroleum geological drilling pipe. Such as: oil drilling pipe, oil drill pipe (kelly and hexagonal drill pipe), drilling straight, oil tubing, oil casing and various pipe joints, geological drilling pipe (core pipe, casing, active drill pipe, drilling straight, press hoop and pin joint, etc.).
5. Pipe for chemical industry. Such as: petroleum cracking pipe, chemical equipment heat exchangers and pipelines for pipe, rust and acid resistance pipe, chemical fertilizer with high pressure pipe and transport chemical medium pipe.
6. Other departments use pipes. Such as: container tube (high pressure gas cylinder tube and general container tube), instrument tube, hand case tube, needle and medical equipment tube. Classification by section shape, etc.

2019年11月30日星期六

Production process of spiral pipe

Production process of spiral pipe shared by Spiral Pipe supplier China.
(1) raw materials: strip coil, welding wire, flux. Rigorous physical and chemical examination must be carried out before investment.
(2) the end of the strip shall be butt joint by single wire or double wire submerged arc welding. After the steel pipe is rolled, automatic submerged arc welding shall be adopted.
(3) before forming, the strip is smoothed, trimmed and planed, its surface is cleaned and transported, and its edges are bent.
(4) electric contact pressure gauge is adopted to control the pressure of oil cylinder on both sides of the conveyor, ensuring the smooth transportation of the strip.
(5) external control or internal control roll forming.
(6) weld gap control device is adopted to ensure that weld gap meets welding requirements, and pipe diameter, wrong edge quantity and weld gap are strictly controlled.
(7) internal and external welding are performed by single or double wire submerged arc welding with American Lincoln welding machine, so as to obtain stable welding specifications.
Spiral Pipe supplier China
(8) all welded welds are inspected by online continuous ultrasonic automatic flaw tester, ensuring 100% non-destructive testing coverage of spiral welds. If there are defects, automatic alarm and spraying mark, production workers according to this at any time to adjust the process parameters, timely elimination of defects.
(9) use an air plasma cutting machine to cut the steel tube into a single root.
(10) after cutting into a single steel pipe, each batch of spiral steel pipe shall carry out a strict first inspection system to check the mechanical properties of welding seams, chemical composition, dissolution status, surface quality of steel pipes and through nondestructive inspection to ensure that the pipe production process is qualified, before it is officially put into production.
(11) where there is continuous acoustic inspection mark on the welding seam, manual ultrasonic and X-ray reexamination shall be conducted. If there is a defect, it shall be repaired and then nondestructive inspection shall be conducted again until it is confirmed that the defect has been eliminated.
(12) the tube where the butt welding seam of strip steel and the t-joint intersecting spiral welding seam are located shall all be examined by X-ray television or film.
(13) each steel pipe is tested by hydrostatic test, and the pressure is radial sealed. The test pressure and time are strictly controlled by the microcomputer testing device of steel pipe water pressure. Automatic printing record of test parameters.
(14) the Oil Pipeline Spiral Steel Pipe end is machined to control the verticality of the end face, groove Angle and blunt edge accurately.

2019年11月23日星期六

What Are Galvanized Steel Pipes


Hot dip galvanized pipe
The hot-dip galvanized tube is obtained by reacting a molten metal with an iron matrix to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle the steel pipe first, in order to remove the iron oxide on the surface of the steel pipe, after pickling, it is washed by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then fed. Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform plating, strong adhesion and long service life. Hot-dip galvanized steel pipe base
 Complex physical and chemical reactions with the molten bath to form a corrosion-resistant, compact zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe base, so it has strong corrosion resistance.

Cold galvanized pipe
The cold-galvanized pipe is electro-galvanized, with a small amount of galvanizing, only 10-50g/m2, and its corrosion resistance is much worse than that of hot-dip galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most do not use electro-galvanizing (cold plating). Only small companies with small equipment and old equipment use electro-galvanized steel, of course, their prices are relatively cheaper. The Ministry of Construction has officially laid down the cold-galvanized pipe with backward technology and the use of cold-galvanized pipe as water and gas pipe. The galvanized layer of the cold-galvanized steel pipe is an electroplated layer, and the zinc layer and the steel pipe base are separately layered. The zinc layer is thin, and the zinc layer is simply attached to the steel pipe base and is easy to fall off. Therefore, its corrosion resistance is poor. In new homes, the use of cold-galvanized steel pipes as water supply pipes is prohibited.

Construction Rectangular Pipe has been widely used in Construction projects, civil chimneys and central air conditioning pipe. If you choose us, safe payment and on time deliver time will give you!
Credit Hot sale various high quality API 5L ERW steel pipe, seamless steel pipe, SSAW Steel Pipe from China leading manufacturer. Our product has API 5L, API 5CT, EN10219, EN10217, etc international quality system certification.
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2019年11月17日星期日

Spiral 3pe Anti Corrosion Steel Pipe

Spiral 3pe Anti Corrosion Steel Pipe  Anti-corrosion Pipe  3PE Pipe
Three-layer structure polyethylene (3PE) anticorrosive coating has been widely used in petroleum pipeline industry for its good corrosion resistance, water and gas permeability and mechanical properties.
Standard:
API, ASTM, GOST,GB, etc.
Material
Gr.B, X42,X46,X52,X56,X60,X65,X70,X80, S335, S355JR,S355JOH,ST52etc.
Size
OD: 219-3600mm, Thick: 5-25.4mm
Length
6m-12m or customed
Application
Gas transportation ( oil, natrual gas)
Fluid ( water supply and drainage)
Structure (piling, bridge Wharf, road, construction structure, ect)
Surface
Bare, Coating, Anti-corrosion, 3PE/PP/FBE. etc
Package
Standard Sea Worthy Package or as per customer required

Steel tube outer wall corrosion protection form 3PE anticorrosion generally consists of three layers: First layer epoxy powder (FBE>100um),Second layer adhesive (AD) 170 ~ 250um. The third layer of polyethylene (PE) is 1.8-3.7mm In practice, three kinds of materials are mixed and integrated to form an excellent anticorrosive layer. Its processing mode is generally divided into two types: winding type and circular die cladding type.


3PE anticorrosive steel pipe coating is a new kind of anticorrosive steel pipe coating, which is a combination of 2PE anticorrosive coating in Europe and epoxy powder anticorrosive steel pipe coating (FBE) widely used in North America. It has been recognized and used all over the world for more than ten years.
The coating of 3PE anticorrosive steel pipe is epoxy powder anticorrosive coating on the bottom layer and the surface of the steel pipe, and the intermediate layer is copolymer adhesive with branch structure and functional group. The surface layer is a high density polyethylene anticorrosive coating.
Three PE anticorrosive coating combines the characteristics of high impermeability and high mechanical properties of epoxy resin and polyethylene. Up to now, it is the best anticorrosive coating with the best effect and performance, which has been used in many projects.

For the use of 3PE anticorrosive steel pipe many people only know one do not know the other, its role is really a very wide coverage, it is suitable for underground coal mine drainage, shotcrete, positive and negative pressure ventilation, drainage gas, fire sprinkler pipe network. Thermal power plant process water waste residue, return water pipeline. It has excellent applicability for water supply pipeline of anti-spray and sprinkler system. Power, communication, highway and other cable protection sleeve. Suitable for high-rise building water supply, heat supply network, tap water engineering, gas transmission, buried water and other pipelines. Petroleum transportation pipeline, chemical industry, pharmacy, printing and dyeing and other industries conveying corrosive medium process pipeline. Sewage treatment discharge pipe, sewage pipe and biological pool anti-corrosion engineering. It can be said that 3PE anticorrosive steel pipe is indispensable in the current construction, and it is believed that with the extension of science and technology, it will have more brilliant achievements in the future.

Ordinary steel pipe in the use of harsh conditions, can appear serious corrosion, which will reduce the service life of steel pipe, anti-corrosion insulation pipe service life is longer, generally is 30 to 50 years or so, you can use and correct installation and use is also can make the network maintenance costs low, anti-corrosion insulation pipe also can set the alarm system, automatic detection of pipeline leakage fault, the knowledge of the accurate fault location and alarm automatically.

Anti-corrosion Pipe heat preservation performance is good, heat loss is only twenty-five percent of the traditional pipe, long running or can save more resources, significantly lower energy costs, and has the stronger ability of water resistant and corrosion resistant, and also do not need to attached pipe trench, can be directly buried underground or in the water, on the construction is simple rapid, comprehensive cost is low, under the condition of low temperature and has good corrosion resistance and impact resistance, and in a certain environment can directly buried permafrost.
Credit Hot sale various high quality API 5L ERW steel pipe, seamless steel pipe, SSAW Steel Pipe from China leading manufacturer. Our product has API 5L, API 5CT, EN10219, EN10217, etc international quality system certification.
For more product information, please click here to visit our website.

2019年11月11日星期一

FBE Pipe Anti-corrosion Pipe Factory

FBE Pipe  Anti-corrosion Pipe Factory
Our company is specialized in produce FBE Pipe and Anti-corrosion Pipe, Our products are very popular, if you are interested in our products, please contact us as soon as possible!
Credit Hot sale various high quality API 5L ERW steel pipe, seamless steel pipe, SSAW Steel Pipe from China leading manufacturer. Our product has API 5L, API 5CT, EN10219, EN10217, etc international quality system certification.
For more product information, please click here to visit our website.

2019年11月6日星期三

Painted Pipe hermal Insulation Pipe factory

Painted Pipe hermal Insulation Pipe factory
If you are finding Painted Pipe and Thermal Insulation Pipe factory in China, we will be your best choose! We have our own factory, so we can give you a cheap price!
Credit Hot sale various high quality API 5L ERW steel pipe, seamless steel pipe, SSAW Steel Pipe from China leading manufacturer. Our product has API 5L, API 5CT, EN10219, EN10217, etc international quality system certification.
For more product information, please click here to visit our website.

2019年10月31日星期四

ASTM steel profile ms square tube galvanized

ASTM steel profile ms square tube galvanized  Furniture Rectangular Pipe Factory  Construction Rectangular Pipe For Sale
Hot galvanizing is the first steel pipe for pickling, in order to remove the surface of the steel pipe ferric oxide, pickling, through ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank for cleaning, and then into the hot dip platin
Product Name
Size 
rectangular 20x30mm--400x600mm,
square 20x20mm--400x400mm 
W.T 1--25 mm
Length: L < 12 m
Inspection
With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection, With Nondestructive Inspection
Surface Treatment
Galvanized, 3PE, painting, coating oil, steel stamp, etc.
Payment terms
L/C T/T (30%DEPOSIT)
Stock or not
enough stock
Package
Sea-worthy Package
Delivery time
Within 10-15 Days
Place of origin
Tianjin, China(mainland)
Construction Rectangular Pipe has been widely used in Construction projects, civil chimneys and central air conditioning pipe. If you choose us, safe payment and on time deliver time will give you!

Credit Hot sale various high quality API 5L ERW steel pipe, seamless steel pipe, SSAW Steel Pipe from China leading manufacturer. Our product has API 5L, API 5CT, EN10219, EN10217, etc international quality system certification.
For more product information, please click here to visit our website.

2019年10月24日星期四

Rectangular Galvanized Steel Pipe

Rectangular Galvanized Steel Pipe   MS Rectangular Pipe Manufacturer
Rectangular Galvanized Steel Pipe,it is a kind of square pipe which is made by using steel plate or steel strip after being crimped and welded, and on the basis of the square pipe, the square pipe is placed in the hot dip galvanized pool and formed after a series of chemical reactions.
Type
Manufacturer & Trading .  ISO9001 & CE certified
Product
Rectangular Galvanized Steel Pipe
Shape
Square, rectangular, triangle, hexagonal, oval and other special sections.
Standard
BS1387, ASTM A53, ASTM A500, ASTM A795, ASTM A252,ASTM A135, API 5L, ASME B36.10M,DIN2458,DIN2440/2444, ISO 65, EN10219, EN10255, EN10217
Grade
Q195, Q215, Q235, Q345, Gr.A, Gr.B.
Spec Description
Size
Wall Thickness
20*20-400*400mm
2.0mm-30mm
Note
1)Packing
No.1. in bundle with steel stripsNo.2. Wrapped the bundle with water-proof cloth and then bundled by steel strips, and with the nylon lifting belts at both ends.No.3. Packaging as per customer's requirement.
2)Payment
T/T or L/C at sight
3)Shipment
20 feet container load 20-25tons pipe and length is under 5.8m
40 feet container load 20-25tons pipe and length is under 11.8m
We will consider bulk cargo when the goods is 
more than 200 tons to save freight fee for our customers.



Quality Assurance:
BV, ISO certificates and SGS test can be provided to assure the quality of our products.
Professional advantage:
More than 10 years' professional producing experience.
Price advantage:
We are manufacturer and we have our own factory, you can get a competitive price with high quality.
Service advantage:
Your enquiry will get quickest and most efficient response. We can provide samples for your evaluation as well as fastest delivery.
Honor advantage:
Good reputation in this industry due to our high quality products and service.

Purpose:
because the galvanized square pipe is galvanized on the square pipe, so the application of galvanized square pipe than the square pipe has a great expansion.It is mainly used in curtain wall, construction, machinery manufacturing, steel and iron construction projects, shipbuilding, solar power generation bracket, steel structure engineering, electric power engineering, power plant, agricultural and chemical machinery, glass curtain wall, car chassis, airport and so on.

Our service
1.Quality: Strictly control the quality through three levels. First level, quality test on the producing line. Second level, quality test during warehousing. Third level, quality test before loading.
2.Timeliness: 24 hours online.Provide consulting and quotation services for customers all the time.
3.Veracity: Strictly follow the customer standard to ensure the tolerance range and meet customer's requirement.
4.Integrity: If The customer complains about the quality of the products, our company will actively cooperate with them to solve the problem. If it is the responsibility of our company, we will bear the corresponding responsibility and compensation.
5.Longevity: Establish good long-term relationship with customers.
Credit Hot sale various high quality API 5L ERW steel pipe, seamless steel pipe, SSAW Steel Pipe from China leading manufacturer. Our product has API 5L, API 5CT, EN10219, EN10217, etc international quality system certification.
For more product information, please click here to visit our website.

Anti-Corrosive Technology Of Anti-Corrosive Steel Pipe

In recent years, the demand for steel pipe insulation pipes in various industries has increased. The manufacturing process of China's s...