Established in 1985, Zhejiang Guanlong Valve Machinery Co., Ltd. is a professional manufacturer which integrating development, production, sales, installation and service into an organic whole. Our company mainly manufactures valves according to ANSI, API, DIN, BS, and Chinese GB standards. We are specializing in producing hydraulic control valves, check valves, multi functional pump control valves, pressure reducing valves, adjusting valves and butterfly valves. There are 6 major series and more than 1000 specifications now. Our products are exported to worldwide, such as the USA, Canada, Europe, the Middle East and South East and Southeast Asia. With high content of technology and reliable quality, our products have gained good fame from the customers. After nearly 20 years of development and self-perfection, our products are supported by novel design, excellent structure, elaborate workmanship, exquisite technology and complete testing measures. We will fully exert our advantage on technology and management to improve continuously our product quality and manufacture high quality valve products to satisfy the customers.