... optional parts:castors,side guide,handle and stop>>detailsFree roller conveyor detailed information:1.surface treatment:zinc plating,chroming, ... coat,teflon and so on,accept customers'request.2.roller diameter:19mm,22mm,28mm,38mm,42mm,48mm,50mm,57mm,60mm, ... and PU coat. Welcome to visit our factory. free roller conveyor, gravity roller conveyor, no motor roller conveyor, free rolling conveyor,hand push ...