verticing downward welding的意思|示意
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英 / /
垂直向下焊接
verticing downward welding的网络常见释义
向下立焊 ... verticing continuous cofter 冶金专业立式连铸机 verticing downward welding 向下立焊 verticing drawn out ad twisting mveryine 立弯式相接铸造机 ...