Sandblast Nozzle 1.The inner material for the nozzles are tungsten carbide nozzle, boron carbide nozzle and silicone carbide nozzle. "2. Normally there are straigt bore and venturi bore type. Outer jacket is normally made of aluminum and iron." 3. We can make it according to your sample,drawing or specification. 4. Below sizes are just for your reference.