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

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go on to boost, to be certain item quality in line with market and buyer standard demands. Our firm has a excellent assurance procedure happen to be established for Rectangular Hollow Section Steel Pipe, Asme B36.10 Carbon Steel Pipe, Ul/Fm Fire Protection Pipe, We sincerely welcome overseas consumers to consult for your long-term cooperation as well as the mutual advancement.We strongly think that we will do superior and far better.
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 insist over the principle of development of 'High top quality, Performance, Sincerity and Down-to-earth working approach' to supply you with exceptional services of processing 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: Berlin, Kenya, Algeria, We taking advantage of experience workmanship, scientific administration and advanced equipment, ensure the product quality of production, we not only win the customers' faith, but also build up our brand. Today, our team is committed to innovation, and enlightenment and fusion with constant practice and outstanding wisdom and philosophy, we cater to the market demand for high-end goods, to do experienced products and solutions.
  • The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
    5 Stars By Kristin from Tunisia - 2016.08.18 18:38
    The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.
    5 Stars By Phyllis from Moscow - 2016.04.08 14:55