piston ring for diesel engine

ModelCylinder bore(mm)The ring leaving 160F60the surface of bucket set off by phosphorus 163F63smooth chromium of general oil165F65smooth chromium of general oilR165F65smooth chromium of general oilX170F70Barrel-Face,2 chrome,coil springJC17070Barrel-Face,2 chrome,coil springR175A75the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil springR18080the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil spring180F80the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil springR185A85the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil springD18585the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil springR19090Barrel-Face,2 chrome,coil spring95A95the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil springZS1100100the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil springZS1105105Barrel-Face,2 chrome,coil springZH1105W105Barrel-Face,2 chrome,coil spring(loop join up by double chromium) Barrel-Face,2 chrome,coil springZS1110110Barrel-Face,2 chrome,coil springZH1110110the surface of bucket set off by phosphorus Barrel-Face,2 chrome,coil springZS1115115half key stone,barrel face half key stone,barrel face(a piece of hoop founded by black ball) ChangChaiZS1120120half key stone,barrel face(a piece of hoop founded by black ball)JD300125Barrel-Face,2 chrome,coil springall project piston loop whose crock diameter is Φ60-125mm