... ,TC oil seal,mechanical seal,pump seal,bushing,sleeve pipe,ring,gaske,metal seal,oil seal)Tungsten carbide is the basical ... unit.We can do stamping,processing,mold making,spark-erosion wire cutting,etc. TC physical propertyTechnical ParameterUnitYWN6YWN8YG6YG8DYNT60CompositionWC%94929492 Ni%68 Co ...