三维建模软件：catia 呵呵 Part1ajimidewogan.CATPart(876.66KB)，Part1jiankaixianchipan.CATPart(1.11MB)，Part1lianlun.CATPart(725.57KB)，Part2chilunzhoushiti.CATPart(976.09KB)，Part5zhou.CATPart(3.31MB)，gear.CATPart(641.42KB)，wrom_wheel.CATPart(2.86MB)