Due to the vastly improved metal casting and machining technologies which are now used, tight parts in new engines are not normal.
由于现在改进的金属铸造和机械加工技术的使用，新发动机里的紧配合反而不正常。
Is a development and design, mold making, precision casting, machining, surface treatment as one of professional manufacturers.
是集开发设计、模具制作、精密铸造、机械加工、表面处理为一体的专业生产企业。
I have a very sound investment casting production equipment, machining equipment and advanced physical and chemical FENXI.
我公司拥有十分完善的熔模铸造生产设备、机加工设备和先进的理化分忻。
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