Features: 1. The use of water,gas,powder removing smoke stains,tartar,color stains,plaque,and without prejudice to the gums. 2. The air filtering deivce(sandblasting tank) can completely prevent moisture,oil and gas blocks forming powder into the handle or pipe blast. 3. A compact,lightweight body with total gas switch,easy to operate. 4. Drainage gas button(Drain): Before each use, press the button three times to drain gas emission filter cup gouache,powder drier. 5. Air tube separate from water tube, never mixture. 6. Tip can be disassemble and clean. Specifications: 1.Connection method: ISO9001 quality standard 4-hole/2-hole handpiece tube 2.Water pressure: 0.2MPa-0.5MPa 3.Air pressure: 0.25MPa-0.5MPa 4.Maximum powder load: 42g/time 5.Water spray rate of working handle (rated conditions): 235ml/min 6.Sandblasting amount of working handle (rated conditions): 1.5g/min-3.8g/min Packing:

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