seamless steel gas cylinder 中文意思是什麼
seamless steel gas cylinder
解釋
無縫鋼氣缸-
Steel blank for seamless gas cylinder
無縫氣瓶用鋼坯 -
Seamless steel tubes for gas cylinder
氣瓶用無縫鋼管 -
Seamless steel gas cylinder
鋼質無縫氣瓶
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