... costs 2.Little repair and simple operation 3.Advanced equipment sand/grit blasting roomADVANTAGE:1.Round the clock work2.Economy, Reasonable ... ,comfortable airness dust collector system3.Up to the highest sand blasting effect 4.Advanced equipment, in full, constant and long ... of all kinds of shot blasting machine, dust catcher ,sand/grit blasting roome etc,we have more than 30 years ...