crown block

短语词组

短語

• bailer crown -block 撈砂天車
• sliding crown -block 可平移的天車
• crown n block 天車
• g crown -block 可平移的天車
• straight rotary crown -block 單層天車
• run into crown -block 碰天車
• bailer r crown -block 撈砂天車
• valve -against-overwinding crown-block protector 天車卷牐防碰安裝
• arch crown block 拱頂石
返回 crown block