Zhejiang Heda Machinery Co.,Ltd, the member of Suzhou Salifu Precision tools Co.,Ltd, is a company in China to develop, produce and sell electric ball valve, motorized modulating valve, motorized butterfly valve, solenoid valve and others. Our products are widely used for HVAC system, medical equipment, environmental control system, agricultural irrigation, industrial etc. Our products are high-quality patent products and they are CE, ROSH, ISO9001 certificated. Also with excellent OEM/ODM services and a good reputation, have won consumer great support from America, Europe, the Middle East and other countries in Asia around the world.