Sandblasting Machine used to clean the surface of steel pipe, ... easier be rolled. It can rotate in positive and negative direction, good for the sand-blasting work.4. It adopts ... material: alumina, corundum, glass ball, walnet sand, resin sand, light steel ball, steel sand, stainless steel ball, aluminum ball, ... dust cleaning (48sacks)The size of the whole machine appearance:1200*3600*2500mm(L*W*H)