1,OEM;SZ Piston ring 2, U Type 3 Piston Ring 3,Management: ISO9002, TS/16949 4,we have more than 6000 specifications SUPPLY PISTON RING as below:1, West Europe Vehicle Type:BEDFORD , BENZ , DEUTZ , DAF , FIAT , IVECO ,LAND ROVER , LIEBHERR , LOMBARDINI , MAN,MWM , OPEL ,PEUGEOT ,PERKINS , RENAULT/RVI , SCANIA ,VM2, East Europe Vehicle Type:BELARUS , COMPRESSOR , HOWO , MTZ,STEYR , KAMAZ , UTB , ...