Key Players
- Art Metal Manufacturing
- C.T.I. Traffic Industries Co. Ltd
- DAT Old Timer Engines
- Federal-Mogul Corporation
- Fujian Dongua Machinery
- Grant Piston Rings
- Hastings
- KMP Brand
- Mahle GmbH
- Nippon Piston Ring Co. Ltd
- Riken Corporation
- TPR Japan
- Total Seal
- WELLFAR
- Weichai Power Co. Ltd
