(1) Performance - The mechanic recovery blasting room adopts mechanic recovery system to recovery abrasives and the abrasives can be chosen according to requirements. The abrasive usage is high and process productivity is also high. - The dust removing system adopts two stages dust removing, and the dust removing efficiency can reaches 99.99%. - The air flow in ventilation in this kind of blasting room can be adjustable to prevent the abrasives from entering cartridge filters. Thus it can reduce the lost of abrasives and can have a good dust removing efficiency. - The main electrical elements in this blasting room uses Japan/EU/USA brand. They have the advantages of reliability, safety, long life service and easy maintenances. - Use widely: It applies to middle and small size of blasting room to do pretreatment jobs such as rough, casting, welding, heating, steel structure, container, transformer shell, special parts and so on.