... 渔具舱 builjowler 组成滑车 built block 组成滑车 built block ...
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... 小艇滑车boatblock 组成滑车builtormadeblock 边墩,?部坞墩bilgeblock ...
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该系列滑车所有部件,均由标准化模块组成,可根据不同的工字钢梁及运用要求灵活组装。
The series of pulleys all the parts are standard modules, according to the requirements of different steel I-beam and use flexible assembly.
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