... a kinds of motorcycleMain process: precision machining and cold forging, precision machining and extrusion pressingTeeth profile process: CNC lathe, ... , grinding, gear honingGood surface resistance, high strength and high precisionHeat treatment: carburizing, normalizing, annealing, temperingMACY ... 3.DETAILED PRODUCT SPECIFICATION.4.COURTEOUS SERVICE AND PROVIDE PROFESSIONAL ADVICE TO CUSTOMERS' IN ...