久久影院精品综合,国产9麻豆剧果冻传媒,一个人在线观看免费视频中文,综合国产亚洲精品 久9re热视频这里只有精品_人妻综合系列专区_九九爱www免费人成精品_av在 在线播放

Service philosophy:


Sincere attitude,

Efficient service efficiency,

Reliable quality of service.

Service if:


Quality assurance period: After the equipment reaches the designated party, the quality guarantee period is 12 months from the date of acceptance.

During the warranty period, where the product quality problems, the supplier is responsible for maintenance, replacement, and bear the full cost. In the receipt of notice from the date of delivery within 300 hours within 24 hours after the sale of service engineers to the scene to solve the problem. 300 km away within 48 hours after the sale of service engineers to the scene to solve the problem.

The company has a mobile service vehicle dedicated to the user service. For large-scale pipeline construction, our company sent someone, car, special service telephone tracking service, construction works are not completed, the service staff does not withdraw.

Warranty period, the company regularly led by the after-sales service engineers regularly overhaul once, to guide the correct use and maintenance of the operator.