The company established in 1999, is located in Tong Zhou District of Beijing. Company have advanced technology and equipment, strive aggressive administrative staff, technical staff, technology superior direct labor that innovate sedulously, with the enterprising spirit of " keep improving , create perfecting " by means of scientific management, create serial quality products. There are four series of products now we can offer.
First. The President wencai Shao senior engineers of serial companies of door viewer have been engaged in the optics design work for many years, participated in and developed domestic first generation of door viewers in 1978. Invented new-type 180 door viewer in 1990, obtained the national patent (Patent No. 90-2-06925. X),Invented the dual-purpose door viewer in 1998 (Patent No. ZL 98 2 01793 6 ). To put out new-type dual-purpose door viewer by Company on market, exquisite door viewer fireproofing door viewer.
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