About
QIN (Quality Industriale) designs, develops, and manufactures piston rings for engines with cylinder bores from 160mm to 980mm. The company offers advanced technology, short lead times, competitive pricing, and OEM-quality products. QIN provides piston-ring sets compatible with leading OEM large-bore engines and supplies Anti-Polishing Rings, Flame Rings, and Repair Bushes. The company is based in Genoa, Italy.