... 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 ... SetsMilling Machine15 SetsRational Precision Inspection Instrument1 Sets types of pulleys