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Fujian Dongya Machinery Co., Ltd. was founded in 1988 in China West Strait Economic Zone, Putian, Fujian, China. It covers an area of 127,050㎡, with capital assets of 430 million RMB and registered capital of 116 million RMB. It has 1,120 employees, including 130 experienced engineers and management staff with senior professional titles.


For over 30 years, DY piston rings produced by Fujian Dongya Machinery Co.Ltd., provide companies such as Dachangjiang Group, Zongshen Power, Longcin General Motors, Lifan Technology, Qianjiang Motorcycle, Honda Power, Sundiro Honda, CFmoto Power, QS Suzuki, Briggs & Stratton, STIHL,etc. for motorcycles, general-purpose engine, drones, and outboard engine manufacturers general support.

DY Piston Rings strategically cooperated with vehicles manufactures such as Changan Automobile, Dongan Power, and Sokon Industrial.

Piston ring products are widely exported to all over the world such as Europe, USA, Middle East, South America, Africa, and Southeast Asia, with good global reputation for its high quality and market share.


Fujian Dongya Machinery Co., Ltd. is a high-tech enterprise in Fujian Province. In 2002, Fujian Dongya Machinery Co., Ltd. was the first piston ring industry in China to receive ISO/TS16949 quality management system certification, IATF16949 quality management system certification in 2018, ISO14001 environmental management system certification in 2015, and ISO45001 occupational health and safety management system certification in 2018.

Owning over 50 patents, participated in the development of technical standards for the piston ring industry and 16 national technical standards.

Fujian Dongya Machinery Co., Ltd. established Xiamen New Dongya Piston Ring Co., Ltd. in Xiamen in 2001, integrating research and development, trade, and logistics.


In 2019, it invested 50 million yuan to establish high-tech enterprises such as East Asia Nanotechnology (Xiamen) Co., Ltd.

Among them, Xiamen New Dongya Piston Ring Co., Ltd. covers an area of 19,770 ㎡ with a registered capital of 20 million RMB. East Asia Nanotechnology (Xiamen) Co., Ltd. covers an area of 62,465㎡ with a registered capital of 25 million US dollars.

In 2021, the annual production of piston rings over 110 million cylinders, making it the world's largest gasoline engine piston ring manufacturer.



Established company.


Recognized as "Hi-tech Enterprise" by Science and Technology Department of Fujian Province.


Passed QS9000/ISO9002 International Quality System Certification.

Recognized as "Two Intensives Enterprise" by Science and Technology Department of Fujian Province.


Set up Xiamen New Dongya Piston Ring Co., Ltd. and R&D Center.


The first company who won the ISO/TS16949 in the domestic piston ring industry.


Invested 130 million to expand new production base in Xianyou.


DY brand recognized as a "well-known trademark in China" by the State Administration for Industry and Commerce.


Re-audited as "High-Tech Enterprise" by Fujian Province Science and Technology Department, Financial Department, State Taxation Bureau and Local Taxation Bureau.


Given "The Fourth National Enterprises and Intellectual Property Pilot Units" by State Intellectual Property Bureau.
Achieved title of "Internal Combustion Engine Piston Ring Enterprise Engineering Technology Research Center of Fujian Province" by Science and Technology Department of Fujian Province.


Invested 250 million dollar to establish Dong Ya Nanotechnology (Xiamen) Co., Ltd..


Recognized as "Hi-tech Enterprise".


Awarded the "National Little giants enterprise" by the Ministry of Industry and Information Technology. 

Powered by strong technical development and continuous innovation ability, DY PISTON RING ranks among the leading brands.

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