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

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We have our own product sales staff, style crew, technical group, QC staff and package staff. We now have strict high quality management procedures for each approach. Also, all of our workers are experienced in printing subject for Gi Pipe List, Jis G3444 Steel Pipe, 12 Inch Erw Pipe, We sincerely welcome all guests to set up business relationships with us on the basis of mutual benefits. Please contact us now. You will get our professional reply within 8 hours.
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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Our well-equipped facilities and superb good quality control throughout all stages of manufacturing enables us to guarantee total buyer gratification 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: Lisbon, Argentina, Moscow, If you need to have any of our merchandise, or have other items to be produced, make sure you send us your inquiries, samples or in depth drawings. Meanwhile, aiming to develop into an international enterprise group, we look forward to receiving offers for joint ventures and other cooperative projects.
  • Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!
    5 Stars By Elsie from Morocco - 2016.04.18 16:45
    Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.
    5 Stars By Rosemary from Stuttgart - 2016.04.18 16:45