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Hatch cover eouipment 舱盖设备
hatch cover 舱盖板
steel structure hatch 舱盖结构
hatch coaming 舱口围
endhinge unit 端铰链
cylinder 油缸
bearing of cylinder 油缸铰链
bolt for bearing of cylinder 油缸铰链轴
wheel assembly 滚轮装置
end securing device 端部止动装置
middle hinge 中间铰链
support of end – arm 端铰链底座
snaplock 下开式压紧器
drain valve 排水阀
hinge joint cleat 铰链接缝压紧器装置
cleat 压紧器
air plug 通气塞
oil tight manhole plate 油密人孔板
water tight manhole plate 水密人孔板
sewage cover 污水井盖板
rubber cover 橡皮盖圈
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