China ASTM A709 Gr. 50 S355jr/Q345b Carbon Steel LSAW ...
Seamless Steel Pipe, Carbon Steel Seamless Tube, Building Material manufacturer supplier in China, offering ASTM A709 Gr. 50 S355jr/Q345b Carbon Steel LSAW Welded Pipe /Tube for Civil Construction Project, ASTM A335 ASME SA335 P11 P22 P91 Seamless Alloy Steel Seamless Tube Boiler Tube, ASTM A213 SA 210 Seamless Boiler Tube Carbon Steel Seamless Pipe Tube and so on.
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