... nozzle,sand blasting nozzle,blasting nozzle,boron carbide nozzle,tungsten carbide nozzle,venturi nozzle,Si3N4 nozzl We supply sandblasting ... such as boron carbide nozzles,silicon carbide nozzles,tungsten carbide nozzles and ceramic ones.Detailed Product Description Product: Tungsten/ Boron carbide double venturi ... diameter of 200mm and length of 300mm, for rings, size can be diameter up to 320mm and ...