Steel Pipes, Pipes Fittings, Socket Fittings manufacturer / supplier in China, offering DIN2448 DIN1629 DIN17175 St35.8 Seamless Carbon Steel Pipe, API 5L Grade X42 X46 X52 X56 X60 X65 X70 X80 Psl-1 Psl-2 Seamless Carbon Steel Pipe, First Class ASTM A106 Gr. C Seamless Carbon Steel Pipe and so on.
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