... 100% full inspection 4. excellent surface treatment Item NO. types of pulleysMaterialsIron, aluminum, steel, copper, plastic, carbon steel, ... solder alloy, HSS, tool steels, or as per the customers’ requirements.DimensionsAccording to customer’s drawingSurface treatmentHeat ... lathe machine, milling machine, drilling machine, EDM, wire-cutting machine, CNC bending machine etc.Service projectTo ...