Factory Supply St44 Chinese Tube4 Seamless Carbon Steel Tube - ASTM A53 Black Painted Welded Steel Pipe – Youfa

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We have a highly efficient team to deal with inquiries from customers. Our goal is "100% customer satisfaction by our product quality, price & our team service" and enjoy a good reputation among clients. With many factories, we can provide a wide range of Galvanized Round Steel Pipe, Gi Square Tube, Large Diameter Galvanized Welded Steel Pipe, We warmly welcome customers from all over the world for any kind of cooperation with us to build a mutual benefit future. We are devoting ourselves wholeheartedly to offer customers the best service.
Factory Supply St44 Chinese Tube4 Seamless Carbon Steel Tube - ASTM A53 Black Painted Welded Steel Pipe – Youfa Detail:

Product ASTM A53 Black Painted Welded Steel Pipe
Material Carbon Steel
Grade Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade AQ345 = S355JR / A500 Grade B Grade C
Standard GB/T3091, GB/T13793API 5L/ASTM A53, A500, A36, ASTM A795
Specifications ASTM A53 A500 sch10 – sch80
Surface Painted Black
Ends Plain ends
Beveled 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.


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Factory Supply St44 Chinese Tube4 Seamless Carbon Steel Tube - ASTM A53 Black Painted Welded Steel Pipe – Youfa detail pictures

Factory Supply St44 Chinese Tube4 Seamless Carbon Steel Tube - ASTM A53 Black Painted Welded Steel Pipe – Youfa detail pictures


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We are convinced that with joint efforts, the business between us will bring us mutual benefits. We can assure you product quality and competitive price for Factory Supply St44 Chinese Tube4 Seamless Carbon Steel Tube - ASTM A53 Black Painted Welded Steel Pipe – Youfa, The product will supply to all over the world, such as: Auckland, Puerto Rico, UK, Our company sets up several departments, including production department, sales department, quality control department and sevice center,etc. only for accomplish the good-quality product to meet customer's demand, all of our products have been strictly inspected before shipment. We always think about the question on the side of the customers,because you win,we win!
  • It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
    5 Stars By Mildred from Israel - 2016.08.15 12:36
    After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
    5 Stars By Debby from Wellington - 2015.10.09 19:07