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Persona de contacto Ms. kevin
East Tie Jiang Ying, Beijing, Beijing
Technicial specification: O2, N2O four tube O2 tubeï&frac*4;š0L/min**1L/min***0L/min N2O tubeï&frac*4;š0L/min**1L/min***0L/min O2 and N2O Linkage Device , adjust O2 and N2O in proportion(O2 concentration is not lower than *5%)