Hangzhou Fuyang Lianggong Instrument Co., Ltd. is located by the picturesque Fuchun River, only 15 kilometers away from the "paradise" Hangzhou and 20 kilometers away from the international airport, with convenient transportation. Our company is a professional manufacturer of self-control valves. The company has strong technical strength, excellent mechanical processing equipment, advanced production technology, and complete testing facilities and after-sales service. It has passed the IS09001 international quality system certification, and its product quality is reliable. The main products are: self operated pressure regulating valves; Temperature regulating valve; Pneumatic diaphragm cut-off valve; Small and precise regulating valve; Pneumatic regulating ball valve; Butterfly valve; Gate valve; Pneumatic thin film three-way flow control valve: series products such as micro (differential) pressure control valves. Our company focuses on product development and research, constantly tapping into internal potential, and emphasizing the digestion and absorption of advanced foreign technologies. The product is widely used in self-control systems in industries such as petroleum, chemical, metallurgical, power, papermaking, textile, food, refrigeration, pharmaceuticals, and water supply and drainage. We are committed to advanced technology and high-quality products to help you reduce energy consumption and labor intensity, enhance safety performance, and provide a comfortable environment. The commitment of good workers is to produce first-class products, create first-class management level, and meet customer requirements.