Hunan grand-pro robot technology co., ltd is located in Chenzhou, Hunan province which is a forest and creative city. We are an international and professional hi-tech enterprise, integrating with R&D, manufacture and marketing of robotic vacuum cleaner.      We created the first robotic vacuum cleaner in Tanwan in 1986; Four years later we organized an invention team in Tanwan; Now we become the worlds first batch robotic vacuum cleaner professional manufacturer; Our products entered into Europe, America, Japan and South Korea in 1998, and got a number of patented technology certificates from America, Germany, South Korea and Japan and other countries. The sales always rank first in Japan and South Korea; In addition, the production and sales of us are taking a leading position over global market.     In recent years our company has carried out produce-learn-research fully cooperating with National University of Defense Technology, Central South University, Taiwan University and other top universities ,so that strong technical support can be put into the R&D of robotic vacuum cleaner. In 2013 our company was allowed to set up the only one provincial Home-Intelligent-Robotics engineering technology research center and technology application center.At the same time, Grand-pro robotic vacuum cleaner industrial park was built in Chenzhou city High-tech Development Zone, aiming to build a world-class intelligent vacuum cleaner R&D, manufacturing base.    With the corporate philosophy of sincerity, cooperation, win-win and development, our company is committed to be the worlds most trustworthy robotic vacuum cleaner system service provider.