A.更換為尼龍墊或短纖維增強(qiáng)橡膠墊 B.更換為尼龍墊 C.更換短纖維增強(qiáng)橡膠墊 D.更換木墊
A.100mm B.110mm C.115mm D.120mm
A.710±5mm B.715±10mm C.715±5mm D.720±5mm