ISO 9001 certified. Manufacturer of sealing parts including rings, bushes & sleeves. Engineering parts including mill linings, nozzle rotors & conveyor screws. Foundry products including riser tubes, sprue bushings, nozzles, plates for flow control & thermocouple protection tubes. SOFC components including solid oxide fuel cell. Dental products including discs, blocks & cylinders made from zirconium oxide. Armor including ballistic protection components. Ceramic powders including silicon carbide & silicon nitride (NSN).ISO 9001 certified. Waste & scrap recycling services for recovery of molybdenum, tantalum, niobium, tungsten & rhenium. Capabilities include chemical & physical analyses of metals, toll extrusion & rotary forging.H.C. Starck is one of the few companies in the world with the ability to reclaim all technology metals and many high-performance ceramic materials via recycling processes. We lead the world in tungsten recycling. Our expertise is based on many years of development and unique processes, and allows us to provide environmentally sound recycling without loss of quality.