There is a saying "Products were sold in 1980s, brands were sold in 1990s, and after-sales service are sold in the 20th century."

It means that a company needs not only good products and sales network for marketing, but also an excellent after-sales service network system. Service is creating usage value by the straight method of working and hence meeting with a certain demand from clients. In fact, service is invisible, but realized by the basis of visible materials. Hence a real service is comprised of both visible and invisible sections. The visible section can provide clients with material joy, and the invisible section can provide clients with spiritual joy. Diman is implementing the professional high quality service by exactly the same frontal consciousness.

Therefore we solemnly promise:

No shortcomings in quality; No worries when using; No complaints when being served.

* For downtown clients we deliver for free in 10 hours, install and test for free.
* During installing and testing, we carry out the policy of "four NOs and four MAKEING-SUREs" which are No Smoking, No Drinking Water, No asking clients for help, Making sure delivery, Making sure installing and testing, Making sure demonstration, Making sure maintenance.
* We provide comprehensive professional service for before sales, during sales, and after sales. All you need to do is dialing our phone number.
* We promise to replace unqualified products in one year, provide with free maintenance for a lifelong time, and cooperated assurance around the country.
*If you have any complaints, please call (86-20-86623499) We will reply you and help you solve your problem in three working days.

　　 Free service for circumvent routing before decoration.
　　Free service for family movie system design and layout, lifelong consulting.