Weifang Guanyu Machinery Manufacture Co., Ltd. is a set of development, casting, processing, testing, technical services as one of the specialized enterprises, mainly producing various types of stainless steel valves, quick couplings, pneumatic angle seat valves, and may undertake all types of precision stainless steel Casting business. Widely used for drainage products, food, oil, chemicals, power and pharmaceutical industries. Our company has a domestic company&＃039;s leading product line and Sol Casting Production CNC Machining Center, using advanced technology of casting, high-tech spectrometer detection technology and strict implementation of the ISO-9001 quality system standards, quality first, faith-based management, customer service, making contributions to society.