Hunan Kangningda ( KND ) Medical Science & Technology Co., Ltd is a high-tec enterprise which manufacture and install the high quality radiation protection products with 30 years of experience in X - ray and radiation shielding. The company is one of the largest Chinese manufacturer in the industry. As the only National Hi-tech enterprise in Chinese radiation protection industry,Website:http://www.kndshield.com, we took the lead to be certified by ISO 9001 international quality system, OHSAS 18000 and ISO 140001 Environment Management System.