FES supplies high quality wear bits for casing, including WS39, WS49, WS95/56, BA90-42, BA90-35, BA80-33, etc. High quality carbid is applied to ensure stregth and wear resistence. In addition, FES also supplies fittings for casings, including conical bolts, conical rings and threaded rings, O-rings, etc., all the parts may be built to match up with standard European-made casings.