Metal Part, Steel Pipe, Pipe Fitting manufacturer / supplier in China, offering Seamless Pipe Manufacturer ASTM A53/A106 Gr. B Carbon Steel Pipe Tube Used for Oil and Gas Pipeline, Manufacturer ASTM A106 Gr. B 20# Seamless Carbon Steel Pipe /Tube Used for Oil and Gas Pipeline, Hot DIP Galvanized Round Steel Pipe / Gi Pipe Galvanized Steel Tube/ Galvanized Tube for Construction and so on.
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