General casting of motorcycle cylinder block 1.material:aluminum alloy ,iron, stainless steel 2.use ... :motorcycle driving system General casting of motorcycle cylinder block Precision motorcycle parts. 1.material:aluminum alloy ,iron, stainless ... ,CMM,spray paint,spectrometer test 6.high temperature treatment:har dening and tempering,high frequency quenching,carburizing quenching,annealing 7.We ...