船舶用碳钢无缝钢管

船舶用碳钢无缝钢管船舶用碳钢无缝钢管
  1. GB/T5312-1985船舶用碳钢无缝钢管普碳钢,不锈钢,有色金属管焊接。

    Carbon steel seamless steel tubes for ship Welding of Carbon-Steel , Stainless-Steel and Nonferrous-Metal tube .