Quzhou Gangchen Machinery and Eelectronic Products Manufacture Co.,Ltd are Taiwan joint venture high-tech enterprise on researching ,producing automatic door,automatic sliding doors,automatic doors operator,access control,door accessories, Automatic doors include automatic sliding doors, hermetic doors, revolving doors, curved sliding doors, microwave motion sensor, door sweep brush, automatic curved sliding door, infrared photocell, automatic door locks, touch sensor, boxer machine,