Casing Pipe, Seamless Steel Pipe, High Pressure Boiler Tube manufacturer / supplier in China, offering ASTM A36, St52, St35, St42, St45, X42, X52, X60, X65, X70 Seamless Carbon Steel Pipe, Grade X52, X56, X60, X65, X70 Line Pipe API 5L Carbon Steel Seamless Tube, ASME B16.25 Beveled Ends ASTM A106 B Seamless Carbon Steel Pipes API 5L Gr. B and so on.
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