boron-carbide blasting nozzles not only are provided with the basic functions of high effective blasting, high sand output and stable injection flow; but also greatly enhances the use life and blasting efficiency (30% faster than ordinary blasting guns) because its material adopts high wearing-durable and extended compound ceramic blasting nozzles. For the basic life of the blasting nozzles, we guarantee 800 hours

(under the conditions that the siphoning blasting guns use 100# aluminum oxide and operating pressure 4kg/cm2); under normal conditions the use life can go beyond 2000 hours.