... blasting nozzle 1)suitable abraive steel grit ,steel shot 2)working pressure 4-8bar Portable sand blast machine coming with ... control .Pneumatic control electric control .single gun ,two guns or more guns ,the machine suitable for long time continuous operation,such ... means Pressure,C means Pneumatic or electric control , 2p means 2 gunsParts of sandblast pot ,blasting boron carbide nozzle , sandblast ...