As a National High-tech Enterprise with more than 40 years of continuous research and development, ASIMCO Shuanghuan Piston Ring (Yizheng) Co., Ltd. is one of the largest piston ring manufacturers in China, producing all kinds of piston rings for commercial vehicle, passenger car, engineering machinery, marine, locomotive, agricultural machinery, etc. with an annual ring production capacity of 180 million pieces and the cylinder diameter from 10mm to 600mm, covering more than 4800 models and specification.

ASIMCO Shuanghuan (CYPR Brand) piston rings have been supplying to more than 100 top OEMs in China, including Weichai Power, Sinotruk, Cummins 5 JVs, Deutz FAW Dalian Diesel, FAW Wuxi Diesel, Yuchai Group, Shanghai Diesel, SFH, JAC Navistar, Naveco, John Deere, JMC, FOTON, SAIC, Geely, Great Wall, BYD, Chery, Haima, etc., accounting for 25% share of the domestic market. Its products has also been entered into the high end market of nearly 30 countries and regions such as USA, Europe, Japan, Korea, Russia, etc. The global key OEM customers are Cummins, Caterpillar and Carrier of USA, Hino, Nissan and Komatsu of Japan, Doosan of Korea, PSA of France, Perkins of UK, etc. It is the biggest piston ring export base in China.

Also, Sintered Valve Seat Insert and Sintered Structural Parts are its new product category,2 joint ventures were established in 2013.