Piston Ring Direct – Fully Automated Equipment, 100% Testing, Strict QC, Large Stock Ready

1.Factory Strength IATF 16949 certified Piston Ring Factory with fully automatic precision coiling and gas nitriding lines; annual capacity of hundreds of millions, serving global OEMs and aftermarket. 2.Production Equipment High-precision CNC coiling machines, micron-level gap cutting equipment, and continuous nitriding furnaces – fully automated processing from steel strip to finished rings with dimensional accuracy within ±0.01mm. 3.Quality Control Every batch undergoes Piston Ring Test – including end gap measurement, radial pressure testing, twist scanning, and metallographic analysis; 100% inline optical inspection with automatic rejection of out-of-tolerance units. 4.Stock Availability Large quantity in stock covering diameters from 50mm to 200mm, compatible with gasoline/diesel engines; popular SKUs maintain 500,000+ sets; mixed batch and drop‑shipping supported; 24h domestic dispatch; 3‑7 days worldwide.