1.Professional factory 2.Material:Steel, Pvc, Rubber, Al, SS 3.Various roller conveyors 4.Good quality and competitive price Free roller conveyor ... plating,chroming,rubber coat,Pu coat,teflon and so on,accept customers'request.2.roller diameter:19mm,22mm,28mm,38mm,42mm ... ,SUS201,Al,PVC and PU coat. Welcome to visit our factory. free roller conveyor, gravity roller conveyor, no motor roller conveyor ...