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Video introduction

——Interview with Bi Weifeng, General Manager of Shenzhen Tongdazhi Technology Co., Ltd.
At the 2019 Shenzhen Expo, Tongdazhi brought a full range of new Sotong doors to the exhibition, attracting many visitors through its shape, quality and price. Tongda Zhisu Tongmen is widely used in the construction of smart cities, smart communities, safe campuses and other projects, and has high customer trust.