About TERUIDA
A legacy of innovation, quality, and reliability in the piston ring industry.
Company Profile
Zhejiang Huadong Piston Ring Co., Ltd was founded in 1993 and officially established under its current name in 1997. Located in Ruian City — the heart of China’s auto and motorcycle parts industry — we are a private enterprise with advanced technology and our own export license.
We specialize in manufacturing piston rings for a wide range of applications including passenger cars, trucks, agricultural vehicles, construction machinery, motorcycles, minicars, gasoline engines, gas engines, and air compressors.
Our commitment to excellence has led us to achieve ISO9001 certification in 1999 and ISO/TS16949 in 2011, ensuring world-class quality management systems across all operations.
Reputation First, Customers Foremost
Our core business philosophy ensures every client receives unmatched service and value.
Seeking the Best, Striving for Perfection
We continuously improve our products and processes to meet the highest standards.
Honest Cooperation, Win-Win Growth
We build long-term partnerships based on trust, transparency, and mutual benefit.
