加工店????
便宜!!?? 我是开车的``````经常去车房````````
刨一个六档差速齿轮轴轴承````````加工价格350`````十分钟搞完````````
更加不要说别的更加复杂的````````
自己找途径买````````````以后学这个专业`````````绝对用出大