Pin 19.1 76.2x22 Escalator Spare Part Step Chain Roller With Slide Bearing
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The step chain and step roller have two design structures: integrated roller and wheel hub roller. The integrated roller is composed of tires and bearings. Hub type roller is composed of tires, hubs and bearings. The materials of hubs can be divided into ......
Modern ElevatorTechnology Service(Guangdong)Co, Ltd.
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