step chain safety device 梯级断链安全装置
broken drive-chain safety device 驱动链条保护装置
broken step chain safety device 梯级链断列触点
Drive chain Safety Device 驱动链安全装置
driver chain safety device 主驱动链断裂保护装置
safety chain device 安全连锁装置
The knife is attached to the overload protection device, the power supply chain protection system, making the equipment has good safety, environmental protection, energy saving and durable.
刀达附有超负荷保护装置，电源连锁保护系统，使得设备具有良好的安全性，环保性，省电耐用。
The chain wheel overload protective device has the advantages of simple and reasonable structure, low cost, convenient manufacturing, safety and reliability.
本发明结构简单合理、成本低廉、制造方便且安全可靠。
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