Factory directly Black Phosphating Seamless High Precision Steel Tube - Solar Mounting Galvanized Square Steel Pipe – Youfa

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To become the stage of realizing dreams of our employees! To build a happier, much more united and far more professional team! To reach a mutual profit of our clients, suppliers, the society and ourselves for Weight Of Gi Pipe, Black Steel Pipe, Square Steel Tube 28mm, Our hugely specialized process eliminates the component failure and offers our consumers unvarying high quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
Factory directly Black Phosphating Seamless High Precision Steel Tube - Solar Mounting Galvanized Square Steel Pipe – Youfa Detail:

Product Galvanized Square and Rectangular Steel Pipe with Holes
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, EN10219

GB/T 6728

JIS 3444 /3466

ASTM A53, A500, A36

Surface Zinc coating 200-500g/m2 (30-70um)
Ends Plain ends
Specification OD: 20*20-500*500mm ; 20*40-300*500mm
Thickness: 1.0-30.0mm
Length: 2-12m

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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Factory directly Black Phosphating Seamless High Precision Steel Tube - Solar Mounting Galvanized Square Steel Pipe – Youfa detail pictures


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We're also concentrating on improving the things administration and QC program to ensure we could maintain terrific gain from the fiercely-competitive company for Factory directly Black Phosphating Seamless High Precision Steel Tube - Solar Mounting Galvanized Square Steel Pipe – Youfa, The product will supply to all over the world, such as: Seattle, Cairo, Singapore, We focus on providing service for our clients as a key element in strengthening our long-term relationships. Our continual availability of high grade products in combination with our excellent pre-sale and after-sales service ensures strong competitiveness in an increasingly globalized market. We are willing to cooperate with business friends from at home and abroad and create a great future together.
  • Although we are a small company, we are also respected. Reliable quality, sincere service and good credit, we are honored to be able to work with you!
    5 Stars By Pearl from Swaziland - 2015.03.03 13:09
    We feel easy to cooperate with this company, the supplier is very responsible, thanks.There will be more in-depth cooperation.
    5 Stars By Mildred from Nairobi - 2016.06.16 18:23