ecosystem Yongchuan Xiuyue tea origin is located in China, Chongqing Yongchuan Chashan Zhuhai, is the main carrier of Tea City in western China. The area of ​​origin is about 20,000 mu, with an elevation of 588-800 meters above sea level. Chashan is rich in calories and abundant rainfall. It is cool in winter and cool in summer, and it is full of mist and fog all year round. There is plenty of sunshine. With subtropical climate characteristics, suitable for a variety of economic crops. Yongchuan Xiuye ​​is planted on a hill and looks out from afar. The layers are stacked and stacked. It is like a green tea altar. In 1963, the "Xiaoyanglou," which was used for tea tasting and rest during the visit of the Zhu boss, is still located in the picturesque Dasan. The base boasts a variety of tea processing, training and sightseeing tea plants with beautiful environment and advanced equipment, a nationwide first-class gene bank of Yongchuan Xiuye ​​breeds, an ecological tea garden and modern science and technology demonstration parks and other experimental parks. asal cannula (NC) is a device used to deliver supplemental oxygen or increased airflow to a patient or person in need of respiratory help. This device consists of a lightweight tube which on one end splits into two prongs which are placed in the nostrils and from which a mixture of air and oxygen flows. The other end of the tube is connected to an oxygen supply such as a portable Oxygen Generator or a wall connection in a hospital via a flowmeter. The cannula is generally attached to the patient by way of the tube hooking around the patient's ears or by an elastic headband. The earliest, and most widely used form of adult nasal cannula carries 1–3 litres of oxygen per minute. Oxygen Generator,5 Liter Oxygen Concentrator,Low Noise Oxygen Generator,Portable Oxygen Concentrator Suzhou Xuanweicheng Biotechnology Co., Ltd , https://www.xwc-medical.com