Connected with service shaft by hollow shaft and plate spring directly.
采用空心轴和板簧与用户直接安装。
The pulling chain uses die-forging chain plate, which has high strength and long service life.
牵引链采用模锻成型链板，强度高、。寿命长。
The pulling chain uses die-forging chain plate, which has high strength and long service life.
牵引链采用模锻成型链板，强度高、。寿命长。
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