Hangzhou Chaotuo Electric Automation Co., Ltd. is China Automotive Fasteners Manufacturers and Industrial Fan Guards Suppliers. Our company was established in 2001 and located in the beautiful city of Hangzhou, Zhejiang Province, on the shore of West Lake, with more than 20 years of experience in hardware manufacturing. The company has passed the ISO9001 quality management system, a total of nearly 20 patented products and technologies, and has been certified by the national high-tech enterprises.