endotracheal thbe, endotracheal tube with cuff, endotracheal catheter, disposable endotracheal tube, tracheal tube endotracheal thbe, endotracheal tube with cuff, endotracheal catheter, disposable endotracheal tube, tracheal tubeSize of the tube clearly marked on the tube ... Establishment of the use of artificial channel1. Non-toxic, medical grade PVC material; Clear, soft and smooth;2. High ...