seamless steel tubes for ship 中文意思是什麼
seamless steel tubes for ship
解釋
船舶鋼管-
Carbon and carbon - manganese steel seamless steel tubes and pipes for ship
船舶用碳鋼和碳錳鋼無縫鋼管 -
Carbon steel seamless steel tubes for ship
船舶用碳鋼無縫鋼管
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