... ,Comapct and robust multi-function machine 2,Efficiency,reliable,tough, 3,Earth-friendly. Vacuum recovery and ... ..Features:Compact and robust multi-function machines are widely used dust-free blasting, blasting a low dielectric loss, automatic sorting ... automatically recycled. Working environment is clean, clean, no dust, no pollution.TypeSSCE204-400EfficiencySa2.5-Sa3.0Steel Surface4-7mm/hConcrete ...