1. 11 years OEM manufacturer 2. custom made services 3. 100% full inspection 4. excellent surface treatment Item NO. belt pulleyMaterialsIron, aluminum, steel, copper, plastic, carbon steel, nylon, bronze, solder alloy, HSS, tool steels, or as per the customers’ requirements.DimensionsAccording to customer’s drawingSurface treatmentHeat treatment, polishing, PVD/CVD coating, galvanized, ...