customer service

Customer satisfaction is always coming first for Beijing dorland system control technology co., LTD. A well-trained team provides professional and technical services to customers rapidly.
Customer service department as a window of Beijing dorland system control technology co., LTD provides after-sales service and communicates with customers directly. Our customers can apply maintenance and understand maintenance process through this department conveniently.

If you want to know detailed information about dorland explosion-proof mobile phones and apply maintenance please contact custom service department
Contact: Ms. Li
Hot line: 0086 10-62961317   Fax: 0086 10-62985217
Technical support: 0086 10-62198496  Email:
Add: Room 11B5, Huajie Plaza Dazhongsi Street, Haidian District, Beijing 100098, P.R.China
极速赛车是正规彩票吗 北京赛车 贵州快3走势 永发彩票计划群 顺发彩票计划群 彩盈彩票计划群 极速赛车登陆 贵州快3走势 秒速赛车是真的吗 创盈国际彩票计划群