Hangzhou Kangna Medical Instrument Technology Co., Ltd is well known China medical oxygen mask manufacturers and oxygen mask suppliers. Company mainly deals in various types of medical equipment. We adhere to the business philosophy of honesty and quality. More than 10 main production lines and 3 factories. We have a strong R&D team and advanced manufacturing technology. Our wholesale oxygen mask are in line with international standards,and are mainly exported to Europe, America, Japan and other destinations around the world.