... the bulk of machine.9. Steel backing can plate various metal and be used in corrosion medium. At the present time ... equipments and so on.Provide standardized products:Cylindrical bushes P4, flanged bushes P6, thrust washers P7, plank stuff P11.Provide ... standardized products:Cylindrical bushes, flanged bushes, thrust washers, plank stuff, gap block, return board, ...