Producer of boron carbide nozzle,tungsten carbide nozzle,ceramic nozzle,sand blast nozzle,sand blasting ... straight bore and venture bore,such as boron carbide nozzles,silicon carbide nozzles,tungsten carbide nozzles and ceramic ones.Estimated service life ... middle wear resistance and anti-shock ability compared with boron carbide and tungsten carbide, and much lighter than tungsten carbides. We ...