タイトルまたは説明

Motorcycle piston ring is made of Japanese high quality material; The surface of motorcycle piston ring is treated by special nitridation technique; Nitrided layer of piston ring is even and provided with high hardness (the nitridation depth is 0.***0.*2mm); This piston ring is provided with such advantages as superb wear resisting and sealing performance, significant gas saving effect, noise free, high temperature resisting, not damaging cylinders, and long service life.