1.high quality with competive price. 2.piston ring for KKK,Garrett,MHI,Holset,IHI etc. 3.Fast delivery 4.3 kinds of material 1.Piston Ring for KKK,Garrett,MHI,IHI,Holset, 2.High quality with competive price. 3.We have three kinds of materials.(W6,3Cr13,CrMoNiTi)4.Can supply samples.3Cr13 Hardness: HV381~468 W6 Hardness: HV463~543 CrMoNiTi Hardness: HV360~440 Contact person:Kathy NiSkype: ...