Kun Shan Youjiaxin Machinery Co., Ltd. was established in 2017 as a company integrates professional R&D, production, sales and service in the air pressure, oil pressure, and air/oil pressure conversion industries. Its products include boosting cylinders, superchargers, Pressurized press, gas-liquid supercharger, multi-power cylinder, whole system, gas pressure booster valve and other related mechanical hardware accessories.