Shandong Shuanggang Piston Co., Ltd. is located in the National Economic and Technological Development Zone of Rizhao City, Shandong Province. It was founded in 1984. It is committed to guiding the industry to make continuous progress with advanced technology and courage to innovate. The company's main business is internal combustion engine pistons, wear-resistant rings and piston special equipment.

The company currently has 33 CNC piston production lines and austenite wear-resistant ring production lines, all of which are CNC, and automated and complete sets of equipment account for 30%. The annual production capacity of pistons is 15 million, the austenite wear-resistant inlay rings is 20 million, and 100 sets of intelligent equipment. These products are mainly used in diesel cars, gasoline cars, construction machinery and other fields. The company mainly provides and provides maintenance accessories to Changan Automobile, Changhe Suzuki, China FAW, Weichai Yangdong, China Yituo, China Heavy Truck, JAC Automobile, Jiangling Automobile, Huatai Automobile, Laiwu Global, Germany Mahler and other OEMs. A network of more than 100 social accessories marketers covering the country has been established.

The company is proud of creating a national brand of automobile parts and insists on unswervingly independent innovation. It has a provincial enterprise technology center, a provincial automotive new metal materials engineering technology research center, and a automotive automatic intelligent equipment engineering research center. In 2014, the company undertakes the 04-special national CNC machine tool and basic equipment manufacturing technology project in the piston industry, and the piston automation production line developed reached the international advanced level and replaced imports.

The company has achieved automation of self-smelting, casting, heat treatment, mechanical processing, inspection, surface treatment, cleaning, etc., and has advantages in product reliability and consistency. The company has successively passed the strict certification of ISO9001, ISO9000, ISO/TS16949:2009 and other quality systems and IOS14001 and OHSAS18001 (environmental, occupational health and safety management system), ensuring that each dual-port piston meets the requirements of the engine.