1. 11 years OEM manufacturer 2. custom made services 3. 100% full inspection 4. excellent surface treatment Item NO. types of pulleysMaterialsIron, 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, ...