A.焊角尺寸K B.焊縫長(zhǎng)度L C.焊縫寬度C D.坡口角度
A.主俯視圖寬相等 B.主左視圖寬相等 C.俯左視圖高平齊 D.主俯視圖長(zhǎng)對(duì)正
A.40 B.16Mn C.20g D.20