A.加長型補(bǔ)修管 B.預(yù)絞式補(bǔ)修條 C.預(yù)絞式接續(xù)條 D.接續(xù)管、預(yù)絞式接續(xù)條、接續(xù)管補(bǔ)強(qiáng)接續(xù)條
A.金屬單絲 B.預(yù)絞式補(bǔ)修條 C.普通補(bǔ)修管修補(bǔ) D.接續(xù)管、預(yù)絞式接續(xù)條、接續(xù)管補(bǔ)強(qiáng)接續(xù)條
A.金屬單絲 B.預(yù)絞式補(bǔ)修條 C.加長型補(bǔ)修管、預(yù)絞式接續(xù)條 D.普通補(bǔ)修管