国产黄片一二区三区_日韩欧美亚洲变态_国产亚洲网站在线播放_艳鉧动漫1～6完整版H_亚洲無碼免費視頻_亚洲日韩中文无码1区_国产高清精品毛片基地_欧美成国产在线视频_成年人黄视频在线观看_正在播放美女酒店首页国产

After-sales service

After-sales service                                                                                                                  

We have established a global after-sales service information processing system to serve customers 24/7 

1. Free upgrade of software for lifelong since the date of purchase;
2. You can attend all kinds of technical training classes free of charge at any time since the date of purchase;

3. At the domestic maintenance service point, we promise to provide on-site service and maintenance within 24 hours within the distance of 300 kilometers, and within 72 hours for more than 300 kilometers. For foreign customers, we respond within 10 hours, and perform solution within 72 hours. 24-hour free after-sales service hotline: +86-400-0531-838      

 Email: viooolaser@viooocnc.com

One-year free warranty (except for the damage of accessories caused by man-made and natural disasters) and lifelong maintenance is provided according to the convention of the industry. 

 Main ways of maintenance: door-to-door, by telephone, online network.

 Note: no charge for technical support by telephone and online network.