China Gold Supplier for Aisi 4140 Seamless Alloy Steel Pipe With Thin Wall - BLACK PAINTED ERW STEEL PIPE WORLD BIGGEST MANUFACTURER YOUFA IN CHINA – Youfa

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Having a sound small business credit score, outstanding after-sales services and modern manufacturing facilities, we've got earned an fantastic reputation among our buyers across the globe for 200x200 Square Steel Pipe, En10255 Steel Pipe, Cold Rolled Steel Pipe, We are now looking forward to even greater cooperation with overseas customers based on mutual benefits. If you are interested in any of our products, please feel free to contact us for more details.
China Gold Supplier for Aisi 4140 Seamless Alloy Steel Pipe With Thin Wall - BLACK PAINTED ERW STEEL PIPE WORLD BIGGEST MANUFACTURER YOUFA IN CHINA – Youfa Detail:

We also offer you product sourcing and flight consolidation expert services. We've our personal manufacturing unit and sourcing business. We can offer you virtually every variety of merchandise associated to our item range for BLACK PAINTED ERW STEEL PIPE WORLD BIGGEST MANUFACTURER YOUFA IN CHINA, We maintain timely delivery schedules, revolutionary designs, high-quality and transparency for our buyers. Our moto would be to provide top quality goods within just stipulated time.
We also offer you product sourcing and flight consolidation expert services. We've our personal manufacturing unit and sourcing business. We can offer you virtually every variety of merchandise associated to our item range for Carbon Steel Pipe, Erw Steel Pipe, Galvanized Steel Pipe, Welded Steel Pipe, WORLD BIGGEST MANUFACTURER YOUFA IN CHINA, Our company sticks to the principle of "high quality, reasonable price and timely delivery". We sincerely hope to establish good cooperative relationships with our new and old business partners from all parts of the world. We hope to work with you and serve you with our excellent products and services. Welcome to join us!

Product Fire Sprinkler 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 GB/T3091, GB/T13793API 5L, ASTM A53, A500, A36, ASTM A795
Specifications ASTM A795 sch10 sch30 sch40
Surface Painted Black or Red
Ends Plain ends
Grooved ends




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.


Product detail pictures:

China Gold Supplier for Aisi 4140 Seamless Alloy Steel Pipe With Thin Wall - BLACK PAINTED ERW STEEL PIPE WORLD BIGGEST MANUFACTURER YOUFA IN CHINA – Youfa detail pictures


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With our great management, potent technical capability and strict excellent handle procedure, we continue on to provide our customers with reputable top quality, reasonable selling prices and great providers. We purpose at becoming amongst your most trusted partners and earning your satisfaction for China Gold Supplier for Aisi 4140 Seamless Alloy Steel Pipe With Thin Wall - BLACK PAINTED ERW STEEL PIPE WORLD BIGGEST MANUFACTURER YOUFA IN CHINA – Youfa, The product will supply to all over the world, such as: Comoros, Chile, America, We always hold on the company's principle "honest, professional, effective and innovation", and missions of: let all drivers enjoy their driving at night, let our employees can realize their value of life, and to be stronger and service more people. We are determined to become the integrator of our product market and one-stop service provider of our product market.
  • The supplier abide the theory of "quality the basic, trust the first and management the advanced" so that they can ensure a reliable product quality and stable customers.
    5 Stars By Johnny from Bolivia - 2016.03.28 16:34
    This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
    5 Stars By May from Czech Republic - 2015.11.22 12:28