Shenzhen Topfan Technology Development Co ., Ltd is a medium - sized enterprise which integrates production , research , development and sales . It has 3000 flat plant and professional design and production team . At present , the company has production development department , Q & C department , R & D department , the domestic sales department and overseas sales department .
In order to protect the customer ` s rights and interests , all the products were tested strictly and repeatedly before being put on the market . According to the customer ’ s different requirements , we can do the following tests of fan : wind tunnel test , vibration test , noise test , drop test , salt spray test , waterproof test , dust test , cycle test of high and low temperature , life testing , simulation test of high altitude low voltage, and ten items tested ROHS .