... in 2004,introducing British advanced manufacturing technology and management mode,specialised in manufacturing pneumatic,hydraulic,hydraulic,electro ... products and efficient service.Hangzhou Flowtecal Automatic Control Valves Manufacturing Co., Ltd, located beside the beautiful West Lake, ... by previous Hangzhou Flyking Pneumatic Actuators& Valves Maker Co., Ltd, Flowtecal Group UK and Flowtecal HK. ...