Mitsubishi 4d31 4d32 4d33 4d34 Piston Ring Sets

China diesel engine piston ring supplier.
Our coporation introduced advanced piston ring manufacturing tech and equipment from Germany and Japan. We have advanced tech about product design, surface treat and inspection. Our yearly output reaches 40 million. According to customer's requirements, we can design, manufacture and inspect various piston rings for internal combustion engines with straight-faced, barrel-faced and taper-faced rings. Rectangular ring, keystone ring, half keystone ring, scraper ring and napier ring are also within our product scope. Now we can manufacture piston ring (diameter from 30mm to 350mm) which used for automobile, agricultural machinery, construction machinery etc.
We also possess the productivity of surface treatment, including nitrided, phosphated, chrome plated, ceramic plated and molybdenum coated.