Our main product is High-Frequency Jet Ventilator, which adopts the new patent technique-high frequency jet ventilation, which obtained the third Prize of National Award for Technological Invention, Specially, TKR-400A has obtained the National Patent. We have two main series of ventilators(TKR series and TPR series) , which include more than 20 models products, and some of them have already been exported to Singapore, Vietnam, Russia, Philippi