日韩手机在线欧美_久久综合性爱_成人又黄又爽又色的视频_嫩草视频研究操女_日韓視頻第二頁_在线国产69自拍视频_午夜性生活影片_亚洲一区不卡免费在线观看_中文字幕专区五月天_欧美日韩成人

Technical Support

Flow Description

1. If the product fails during use or the user has questions when debugging the product parameters, you can call our company for service at any time;

2. When applying for repair, the customer needs to provide the following information: contact person, contact information, contact address, machine model, serial number, fault phenomenon;

3. After receiving the customer's fault report call, the service engineer can communicate and guide by telephone and give preliminary problem solutions;

4. If the problem is not solved by telephone communication, according to the situation of the faulty machine, arrange an engineer to provide on-site service or notify the customer to send it to the designated maintenance point for maintenance;

5. No matter which way the service is used, our ultimate goal is to help customers solve problems before the service is completed.