Suction sandblast nozzle 1) Bore Dia :6/8/10mm 2) materail : tungsten carbide,boron carbide Pressure sandblast nozzle ,includes Boron carbide , tungsten carbide ,and ceramic nozzles ,the Bore dia usually is 6mm , 8mm,10mmMaterail Bore DiaBoron carbide6mm8mm10mmTungsten carbide 6mm8mm10mm Pressure sandblast nozzles