Reliable Supplier Spiral Welded Seam Steel Pipe Mill - Large Diameter Square and Rectangular Steel Pipe – Youfa

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Our rewards are lower costs,dynamic profits team,specialised QC,potent factories,high-quality services for 150x150 Steel Square Pipe, Ssaw Seamless Carbon Pipe, Scaffold Steel Tube, We are able to do your tailored get to fulfill your own satisfactory! Our organization sets up several departments, including manufacturing department, sales department, high quality control department and sevice center, etc.
Reliable Supplier Spiral Welded Seam Steel Pipe Mill - Large Diameter Square and Rectangular Steel Pipe – Youfa Detail:

Product Square and Rectangular Steel Pipe
Material Carbon Steel
Grade Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
Standard DIN 2440, ISO 65, EN10219GB/T 6728JIS 3444 /3466ASTM A53, A500, A36
Specification Square Hollow: 20*20-500*500mm

Rectangular Hollow: 20*40-300*500mm

Thickness: 1.0-30.0mm

Length: 2-12m

Surface Bare/Natural Black

Painted or Oiled with or without wrapped

Ends Plain ends

square big pipe square steel pipe big size square big size pipe

Strict Quality Control:
1) During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved by Malaysia, Indonesia, Singapore, Philippines, Australia, Peru and UK. We own UL /FM, ISO9001/18001, FPC certificates


learn more about certificates

quality control

Packing and Delivery:
Packing Details : in hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles.
Delivery Details : Depending on the QTY, normally one month.


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Reliable Supplier Spiral Welded Seam Steel Pipe Mill - Large Diameter Square and Rectangular Steel Pipe – Youfa detail pictures


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We generally believe that one's character decides products' top quality, the details decides products' high-quality ,along with the REALISTIC,EFFICIENT AND INNOVATIVE team spirit for Reliable Supplier Spiral Welded Seam Steel Pipe Mill - Large Diameter Square and Rectangular Steel Pipe – Youfa, The product will supply to all over the world, such as: Singapore, Berlin, Latvia, By continuous innovation, we will provide you with more valuable products and services, and also make a contribution for the development of the automobile industry at home and abroad. Both domestic and foreign merchants are strongly welcomed to join us to grow together.
  • The factory workers have a good team spirit, so we received high quality products fast, in addition, the price is also appropriate, this is a very good and reliable Chinese manufacturers.
    5 Stars By Roberta from Poland - 2016.08.15 12:36
    In our cooperated wholesalers, this company has the best quality and reasonable price, they are our first choice.
    5 Stars By Laura from Guatemala - 2016.11.01 17:04