pulley block
短語詞組
- pulley y block 滑輪組
- electric pulley -block 電動(dòng)葫蘆;電動(dòng)滑車組
- pulley -block luffing gear 升降支臂用滑輪組
- tension pulley block 張緊滑車;張緊滑輪
- double iron pulley block 雙輪鐵滑車
- twin pulley block 雙滑輪組
- and wormwheel pulley block 蝸桿蝸輪滑車組
- Pulley Block Hook 滑輪群拉鉤 返回 pulley block