... years OEM manufacturer 4.excellent surface treatment Item NO. pulley wheelMaterialsIron, aluminum, steel, copper, plastic, carbon steel, ... , PVD/CVD coating, galvanized, electroplating, spraying, and painting and so on.PackingWooden box, or as per the ... machining, drilling, turning, grinding, tapping, mould design and processing, casting, sheet mental working etcApplicationAutomation machine, medical ...