... ,cement,steel Specifications:alibaba China impact idler manufacturer for conveyor belt 1.Dia 60-219mm,length 190-3400mm 2.Used ... CE,ISO,BV,SGS alibaba China impact idler manufacturer for conveyor belt Advantage:1.The life time: more than 30000 hours2 ... terms4.Dustproof&waterproof alibaba China impact idler manufacturer for conveyor belt Detailed:1.Roller idlers Dia 50mm-219mm, length 190-3400mm, which ...