Feature:
　1,Including cuffed or uncuffed.
　2,With high-volume and low pressure cuff.
　3,With Murphy eye to avoid complete respiratory obstruction.
　4,Build-in stainless spring for eliminating the risk of kink and crushing. Applicable for all

      kinds of position, especially for decubitus.
　5,Reinforced endotracheal tube with stylet reloaded is easy to operate.