我们的产品还是以前那几种,不过产品比以前好多了,电机改进了,使用寿命比以前长一倍多,电池上装的都是防尘开关,主机增加了报警装置,电量不足时会自动蜂鸣报警.主机与电池的连接口都加了密封胶垫,这样我们的产品更完善了,返修率更低了.很希望能与贵公司继续合作.

Our products are still those previous kinds,but their qualities are much better than ever,the electric-motors have been improved，their service life increases one times much more than ever，anti-dust switches are installed on the batteries，and we have also added alarming system to the machine's main parts ，it will buzz as the power is not sufficient。we add hermetic cushions to the places where the mainframe and the batteries connect，thus our products become more perfect，and have lower rate of amendment。


We are expecting to cooperate with your company.


供参考