A.先斷短料后斷長(zhǎng)料 B.先斷長(zhǎng)料后斷短料 C.間隔斷長(zhǎng)料和短料 D.沒(méi)有順序要求
A.4~8mm B.6~10mm C.4~10mm D.6~12mm
A.閃光對(duì)焊 B.氣壓焊 C.電弧焊 D.電渣壓力焊