A.等離子切割機(jī) B.氣動(dòng)切割鋸 C.焊點(diǎn)轉(zhuǎn)除鉆 D.打孔器
A.插入件對(duì)接 B.搭接 C.偏置對(duì)接
A.插入件對(duì)接 B.無(wú)插入件搭接 C.無(wú)插入件對(duì)接