Main Roller Zhejiang Zhengyuan Intelligent Equipment Technology Co., Ltd. Base Info Model NO.:AdjustableMaterial:Carbon SteelTrademark:zhe. zhengyuanTransport Package:Wooden Box or CarbonSpecification:20,25,32,38,50,60,76,89Origin:China Description Pre:Belt Conveyor Chain Conveyor Slat Conveyor Next:Synchronous Pulley Roller