Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing same, and combination of piston ring and cylinder block.
有提高的抗擦伤性、抗裂性和抗疲劳性的活塞环，和它的生产方法，以及活塞环和气缸体的组合。
2
Hot load and mechanical load coupling make piston to produce crackle, piston-ring glued and scuffing of cylinder bore and so on.