... . Alloy metal stents, spray technology, very durable3. Stainless steel pressure monitoring gauge, the scope: 0-1Mpa, 0.05 scale readable.4 ... ~1600mL 6. I:E: 1:27.BPM:3-40bpm8.TV monitoring:20~300 mL,300~2000 mL 9.Airway pressure ... monitoring:-20-100cmH2O10. Gas source gauge monitoring :0-1MPa11. Monitor:Inspiratory indicator,Expiratory indicator ...