... blank, any size and design avaialalbe, tengsten Tungsten carbide seal ring:Materials: cemented carbide, tungsten carbide, hard alloy and ... ring CHD×d×H Other seal rings QTD×d×HOther processing: chamfering, R or rectangular radial grooves on the end ... for face rotation-prevention, circumcircle axial rotation prevention R or rectangular grooves, end face with other geometry, polishing etc. GradeEqual ...