... shaft *Model#: xwy-81 *Use for the rotate connection parts of printer, copy machine, fax machine, toys 1. metal ... shaft, axis of rotation, revolving shaft, moment axis, precision parts, hinge2.Model#: Xwy-813.material: stainless steel, carbon steel ... nickel/ zinc plated, galvanized, powder coated5.Use for the rotate connection parts of printer, copy machine, fax machine, laptops, computer, mobile ...