1.Quality:Sandvik OEM. 2.ISO9001:2008Certified 3.Precise dimension 4.Material:JM14 5.Part No.:442.7923-01 Company IntroductionShenyang YYD Industrial and Mining Mechanical Co.,Ltd is specialised in producing all kinds of crusher spare parts, such as Upper Head Bushing,Lower Head Bushing,Frame Bushing,Eccentric Bushing, Socket Liner, Wear Plate, Countershaft Bushing as well as other crusher parts ...