Hongkong Huashuo Group International Enterprise is a huge multinational company including science research, production and trade. It has tens company such as Shanghai Peifo Company, Shanghai Huashuo company, Yingjie Power & Electronic Research Institute, Suzhou Purification Company, and so on. We used fast roll door technology from France, USA , Germany , United Kingdom, Japan for reference and imported safe technology, speed change technology, anti-collision technology, automatic restoration technology. Meanwhile, we developed automatic digital allocation technology, height-adjustable and process-monitoring technology, start & stop in low speed, run in high speed technology