Guangzhou CN Electrical Device Co., Ltd is the professional manufacturer in research and produce automatic sliding door, revolving door, safety inspection door, passage brake machine, ATM Cabin, household automatic door, automatic Windows, biological recognition and other intelligent devices. Guangzhou CN Electrical Device Co., Ltd is a global famous supplier in the field of automatic door.With the economic fast development in China ,Guangzhou CN Electrical Device Co., Ltd introduction of advanced technology and management from Germany, and we have passed ISO9001, 2008 international quality...