our company is a leading piston ring manufacturer in China, founded in 1986, can make high-quality piston ring to meet market's need  with bottom price,  developed some piston rings for KRAZ,IFA,KAMAZ,YAMZ,BELARUS,MAN,SCANIA,BENZ,FORD,FIAT,KIA,LANDROVER,PERKINS....some information as follows for your reference:

1, the rings from dia20mm to 295mm are available
2, material :
Ductile cast iron
polybasic alloy cast iron
WVTi alloy cast iron
act.

3, surface treatment
Ceramics CVD
Chromium plating
Plasma Spraying
Gas Nitriding
MoS2 Coating
PTFE Coating
Copper Plating
Tin Plating
Phosphating
Oxiding
Ceramics penetrating


4,annual turnout :
piston ring: 60,000,000pcs
valve seat inset:10,000,000pcs
spiral spring: 40,000,000pcs

5,Quality policy:
ISO9000
ISO14000
ISO/TS16949

OEM is welcome