Personlized Products Seamless Square Tube St37.4 Astm A312 - Construction Material Galvanized carbon steel pipe – Youfa

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"Based on domestic market and expand overseas business" is our development strategy for Square Tube, Rectangular/Square Steel Pipe, Lsaw Steel Pipe, Customers first! Whatever you require, we should do our utmost to help you. We warmly welcome customers from all over the world to cooperate with us for mutual development.
Personlized Products Seamless Square Tube St37.4 Astm A312 - Construction Material Galvanized carbon steel pipe – Youfa Detail:

Product Hot Dip Galvanized 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 EN39, BS1139, BS1387, EN10255,ASTM A53, ASTM A500, A36, ASTM A795,ISO65, ANSI C80, DIN2440, JIS G3444,GB/T3091, GB/T13793
Surface Zinc coating 200-500g/m2 (30-70um)
Ends Plain ends
with or without caps

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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Personlized Products Seamless Square Tube St37.4 Astm A312 - Construction Material Galvanized carbon steel pipe – Youfa detail pictures


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We take "customer-friendly, quality-oriented, integrative, innovative" as objectives. "Truth and honesty" is our management ideal for Personlized Products Seamless Square Tube St37.4 Astm A312 - Construction Material Galvanized carbon steel pipe – Youfa, The product will supply to all over the world, such as: Atlanta, Costa rica, El Salvador, In the increasingly competitive market, With sincere service high quality products and well-deserved reputation, we always offer customers support on products and techniques to achieve long-term cooperation. Living by quality, development by credit is our eternal pursuit, We firmly believe that after your visit we will become long-term partners.
  • 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 Margaret from Poland - 2016.12.02 14:11
    This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
    5 Stars By Constance from France - 2015.09.21 11:44