wechat:13655357500   QQ:1437768772 Provide water-cooled motor aluminum shell + water-cooled motor aluminum shell National Service Hotline: 13655357500 Mr. Yang, 100 West water-cooled aluminum alloy motor shell to the welding processing, custom processing drawings, the scale of mass production, aluminum motor shell excellent suppliers, 20 Year technology precipitation, new energy automotive motor shell product size accuracy, small shape and position tolerance.