Steel Pipe, Cold Drawn Precision Seamless Steel Pipe, Precision Seamless Steel Tubes manufacturer / supplier in China, offering High Density Q235B Q345 16mn 20# 45# OEM Customized Irregular Carbon Steel Tube Irregular Carbon Steel Tube, Q345 Q345b Q355b Various Models Accept Customization Triangular Carbon Steel Pipe, Cold Drawn 20#/45#/Q355b Material Cat Face Triangular Hollow Shaped Steel Pipe and so on.
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