1,Factory direct sales,hight quality and competitive price. 2,materical:PTFE+NBR+NY 3,working pressure:under 50Mpa Excavator SealMaterial:PTFE+NBR+POM Advantages1,Excellent sliding performance,no creeping phenomenon2,Good Shape stability ,high wear resistance,good chemical stability,3,antiextrusion characteristics is improved greatly.Long service life4,It is applied to hydraulic system from ...