... , metallurgy, building materials, chemical industry, mineral processing, coal mining and other industries transport material.(3)Work environment: Belt conveyor, belt conveyor for conveying bulk density of less ... .0------22022996Parallel roller0.84167118------1.052881472303454691.25661101842884325881.6841422363685587532.01031742894516779222.51252113505468211117 Belt conveyor ,belt conveyor for mining