We are professional OEM manufacturer of HVAC Control Products,Refrigeration Parts&Tools,Brass fittings&Copper Fitting,Disperse pipe(refnet joint). We founded in 1988 years and have 10 years ODM&OEM experiences.Our products Brand"Hengsen"is a famous brand in China local market and also in some countries.We have 3 main series products.(1)HVAC Control products:-Motorized brass Ball Valve-Motorized Zone Valve-Electric Thermal Valve-Brass Solenoid Valve(air,oil,water)-Motorized Flange Iron ball valve-Damper actuator-Dynamic Pressure Balance Electric Regulating Valve-Dynamic Balance Filter motorized ball valve-Water Flow Brass Static Balance valve-Electrical Control Auto compensation Plug valve-Mechanical thermostat-Digital thermostat-Temperature sensor-Liquid Flow Switch-HVAC Brass Control Valve(with Actuator)-HVAC Iron Control Valve(with Actuator) (2)Refrigeration Parts&Tools:-Double Manifold gauge sets-Single manifold set-Refrigeration Gauges-Charging Hose-Quick Couplers-Sight Glass-Hand Valve-Split Air Conditioning Valve-Refrigeration Ball Valve-Refrigeration Solenoid Valve-Filling Valve-Can Tap Valve-Needle Valve-capillary-Comb Slice-Cutting Knife-Brass Nut-Brass tie-in-Disperse pipe(refnet joint) (3)Copper&Brass Pipe Fitting:-copper Elbow-copper Tee-copper Straight coupling-copper Reducing Coupling-copper U Bend-copper P-Trap-Brass Solenoid Valve(water,oil,air)-Brass Male&Female Eblow-Brass Male&Female Tee-Brass Male&Female connector