Shanghai Qihai Industrial Co., Ltd. (formerly Shanghai Haishu Hardware Products Co., Ltd.) is a leading domestic manufacturer of electric doors and windows. Mainly produce electric chain type window openers, electric screw type window openers, manual window openers, fire smoke exhaust windows, electric curtain motors, blinds motors, doors and windows and supporting facilities. The company has 2 production bases, one is located in the Yangtze River Delta Shanghai Songjiang Economic Development Zone is located in Nanchang Industrial Park, Jiangxi in the Yangtze River Delta. All products of the company have passed the national 3c fire protection certification and the EU CE certification, and CCTV is listed as a brand.