... component in conveyors, elevators, rollers etc. We manufacture and export a wide range of custom made ... Company NameMain ProductsMaterialPart of Technical RequirementJiangsu Pengfei Group Co.,Ltd.Support roller, kiln tyre, girth gearZG35CrMo,ZG42CrMoUltrasonic ... test Grade 3Jiangsu Haijian Stock Co.,Ltd.Support roller,kiln tyre,girth gearZG35CrMo,ZG42CrMoUltrasonic ...