Chang Tong Technology Co., Ltd was established in September 2003, located in Gongyi Industrial Demonstration Zone. The company covers an area of 16081.3m2; with total investment of 260 million RMB. The main business scopes are design; research; produce and sell the rolled section and auto parts; export and import products and technology. It mainly manufactures leaf spring, rolled section and flat steel, automotive brake, flange and pipe piling end-plates.

The company can annually produce 50,000 tons of leaf spring, 400,000 automotive brake valves, 30,000tons of flange blanks, 10,000tons of flanges, and 100,000tons of pipe piling end-plates. There are about 300 employees, in which 76 people are college graduates. We have municipal R&D center, 17 national authorized patents, in which 6 are for invention and 11 for utility model, while we are applying for 10 patents. The company has the right to import and export, with Changtong brand becoming more famous, our products are well sold ...[More] China and exported to Russia, Poland, Denmark, South Africa, Thailand and other countries and well-reputed by domestic and foreign customers.

The corporate has “AAA” bank credit and passed ISO9001 and ISO/TS16949 international quality certification. It wins kinds of honors, such as “Provincial Hi-Tech Enterprise”, “China Association of Automobile Suspension Spring Unit”, “State’s Top 500 Private Enterprise”, “Provincial Faithful Enterprise”, “Top 100 Private Enterprise of Henan Province” and “AAA Grade Credit Enterprise of China”. Henan Changtong Technology Co., Ltd insists the business philosophy of “quality for survival, innovation for development”. Owing to advanced techniques, excellent equipments, strong technical force, complete testing equipments and be dedicated to research and develop the product with self-owned intellectual property rights, all of economic indicators of the company has been ranked first in the industry of the province.