... groove ball bearings for carbon steel, bearing steel , stainless steel,non-standard bearing and injection molding roller and dysmorphism ... excellent reliability. 1.Product imformations: Model No Non standard Bearing rollerBearing Material carbon steel ( carbon,chrome,stainless ... DHL UPS Fedex or OthersCompany nameFuan City Yuan Cheng Bearing Co., Ltd.Operational AddressNo. 3, Liyuanchang Industrial ...