Shanghai Puyon Machinery Equipment Co., Ltd. established in 2010, located in Shanghai, China. As a company specializing in vacuum technology, we dedicate to providing vacuum equipment with high quality, high reliability and professional service to global customer;Puyon Vacuum provide PV oil-rotary vane pump, PVG air-cooled screw pump, PLG water-cooled screw pump, ZJP roots pump, ZYBW and WZB oil-free rotary vane pump and customized vacuum pump system and central vacuum station; We also provide multiple vacuum system control solution;