Hunan Changsha Weifeng Zhengyuan Engine Accessories Co., Ltd.
 

Human Changsha Weifeng Zhengyuan Engine Accessories Co., Ltd. (former Chiansha Zhengyuan Power Accessories Factory) , established in 1943, the first piston and piston ring manufacturing factory in China, key enterprise of China Machine Industry Department, capable of manufacturing piston for cylinder with diameter of Φ32-Φ160mm and piston ring for cylinder with diameter of Φ32---Φ480mm; the company was purchased by Guangdong Foshan Weifeng Engine Accessories Co., Ltd in 2001, with register address at No. 32, Labor East Road, Changsha, Hunan, register capital of 6 million RMB, fixed asset of 60 million RMB, provided with annual production capacity of 40 million pieces diesel oil piston ring .

Human Changsha Weifeng Zhengyuan Engine Accessories Co., Ltd. is the first enterprise in the industry that carry out comprehensive quality management, has passed  GB/T19002-ISO9002ã€?/span>QS9000å’?/span>ISO/TS16949 quality system certification, and has made product quality manual according the standard of Shanghai Volkswagen, and has invested to introduce piston hard chromium plating technology from AE company and pistion design, manufacture and test technology from German GZ Company. Its piston chromium plating technology level and spheroidal graphite iron ring technology level take a lead in domestic market. strict quality management system make trademark of "Zhengyuan brand" piston and piston ring enjoy good popularity in the industry.

After purchased by Guangdong Foshan Weifeng Engine Accessories Co., Ltd. in 2001, the company continues to carry out management innovation and increase technology investment, economic benefit improves year by year; three types of piston rings of Santana, FAW CA4888, Cummins has passed the strict examination of main engine plants and inspection appraise of other countries, has won the production license issued by Shangai Volkswagen, China FAW Chongqing Engine Plant, won designated product facility qualification issued by railway department and China Watercraft Head Office;the company has coorpated with more than 100 main engine plants and more than 1100