this kind of shot blasting machine is an environmental-friendly product specificallydeveloped for construction and maintenance of various kinds of roads; it cankeep dust-free and non-pollution during the construction; and the abrasive canbe automatically recycled. The equipment can be used for: water proofing andrough making for concrete bridge deck, and cleaning and rough making for asphaltpavement, increasing the roughness of surface; recovery of anti-skid performancefor pavements, tunnels and bridges; cleaning of fatting up and marks;decay-resistant treatment of steel bridge deck; rubber and marks removing forairport pavement.