久久国际精品,国产精品国产三级在线专区,色欲天天婬色婬香WWW夜色,春色校园综合激情亚洲

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.