Shang Hai Yandi Electric Heating Element Co,.Ltd is one of leading manufactory in electric element &equipment ,The company is located in shanghai ,was founded in 1981.It provides varieties of electric heater .our products have many different types,including cartridge heater ,tubular heater ,cast-in heater ,band&coil heater, resistance& heating wire, ceramic heater, quartz heater, thermocouple, and other electric elements. We own the capacity with an annual output of 2000000 meters ...