国产一级a爱做片免费看_天堂网亚洲综合在线_国内免费精品久久久久久久_做你的爱人BD韩国完整版 亚色中文91在线_99精品国产自在现线10页_欧美一级α片中文字幕_亚洲欧美一区二区三区在线

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.