Piston Ring, Filter manufacturer / supplier in China, offering for Mercedes-Benz Automobile Piston Ring Om409 Om401 Om402, for Audi Automobile Piston Ring Dieselmotor 2496cm3 A42.5tdi, A62.5tdi A82.5tdi, for Isuzu Automobile Piston Ring Da120 1-12181-036-01-12181-087-01-12181-109-01-12181-128-01-12121-001-0 (cyl) 1-12181-005-0 (cyl) and so on.