... 2.use:motorcycle driving system General casting of motorcycle cylinder block Precision motorcycle parts. 1.material:aluminum alloy ,iron, stainless ... parts 4.finishing:anodized and polishing, with perfect treatment5.processing:die casting,CNC lathes,deburring,milling machine, polishing,CMM,spray ... to produce a number of identical parts 3)unit die to produce different parts at one time 4)combination ...