九游会官网真人游戏第一品牌-九游ag登录中心网址 > 九游会官网真人游戏第一品牌的技术支持 > 九游会官网真人游戏第一品牌的售后服务承诺 > 服务
1、一个风扇不转，检查风扇接口是否和其他风扇接触好，或者更换新风扇。 2、四个风扇都不转，检查12v电源是否有电，检查风扇开关是否打开。...
generally, we pack our goods in neutral carton and wooden box....
as a professional supplier of tablet laptop charging cart....
haijie as factory, established in 1996, owns a plant area of 94000㎡and 526 staffs which has been developed to a high-tech enterprise for educational equipment manufacturing, research and development, and whole teaching solutions of internet of thing...
0317-5486766
0317-5486766