A.操作簡(jiǎn)便省力B.接頭時(shí)間短C.經(jīng)濟(jì)D.適應(yīng)條件差的現(xiàn)場(chǎng)
A.接頭效率高B.承受拉力大C.使用壽命長(zhǎng)D.對(duì)滾筒無(wú)損害
A.接頭效率低B.可拆卸C.使用壽命短D.對(duì)滾筒有損害