patent block
... patent anchor 无杆锚 patent block 通用滑车 patent chain hoist 差动滑车 ...
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挂旗通信用滑车 telegraph block
·2,447,543篇论文数据，部分数据来源于NoteExpress
目前，电缆滑车广泛应用于各种通用桥(门)式起重机、电动葫芦自行小车、仓库、船厂、码头等起重设备的移动供电。
At present, the cable pulley is widely used in all kinds of general bridge (the door) mobile power supply cranes, electric hoist car, warehouse, shipyard, dock hoisting equipment.
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