In March 2017, TOPS successfully won the bid for the central laboratory of Duowei Sichuan factory; The winning products include: constant temperature and humidity test chamber, cold and hot shock test chamber, ultraviolet weather resistance test chamber, rain test chamber, etc. This batch of equipment will be delivered in batches to Duowei Sichuan factory for installation and use at the end of March and early April.

Duoweizhiyuan Technology Co., Ltd. is a high-tech enterprise that integrates mobile phone research and development, production, sales, and service. The company's marketing network covers more than 30 provinces (cities) including Beijing, Shanghai, Fujian, Zhejiang, Guangzhou, and Shenzhen, and has also established a comprehensive customer service system. It is gradually expanding to countries and regions such as Russia, Southeast Asia, and the Middle East. DOOV is the world's first female mobile phone brand launched by DOOV Zhiyuan Technology Co., Ltd. for segmented markets. Prior to this, although other manufacturers had also launched women's mobile phone products, there has never been a female exclusive mobile phone brand launched so far. DOOV's strong creation of a customized mobile phone brand for women marks a new stage of brand marketing in the mobile phone market.