Hangzhou HAVO is a professional supplier in the field of high-end control valves and automatic control equipment, with partners in world-renowned control valve brands and a rapid response after-sales center. Through years of experience in design, assembly, modification, maintenance, and debugging, HAVO has absorbed innovation in the control valve sector, providing fluid control solutions to clients. Our products are widely used in industries such as oil, chemicals, power, metallurgy, shipping, food, construction, and mechanical accessories. HAVO boasts an innovative R&D team, advanced management, and equipment, and has established a comprehensive testing and testing center. Our production base is equipped with machining centers, CNC lathes, conventional lathes, ultrasonic cleaning equipment, pressure testing equipment, spectrometers, and ultrasonic flaw detectors, and has obtained the TS Special Equipment Manufacturing License (Pressure Piping), SIL safety level certification, and special industry requirements certifications. We have also been awarded the "Hangzhou High-Tech Enterprise" certificate. Our main products include globe valves; precision and small-sized regulating valves; low-temperature control valves; self-regulating valves; storage tank nitrogen sealing valves; O and V type ball valves; high-performance butterfly valves, low-load butterfly valves, three eccentric butterfly valves; parallel gate valves; programmable valves; cut-off valves; bottom discharge valves; electric actuators; and pneumatic actuators. We offer materials such as carbon steel, alloy steel, stainless steel, super duplex stainless steel, and special alloys like MONEL, with product temperatures ranging from -196°C to 650°C. Being responsible to our clients and society is the unwavering pursuit of the HAVO team!