Shiheng group is a private scientific enterprise devotes to R&D, production and sales of all series negative temperature coefficient (NTC) thermistors, NTC sensors, positive temperature coefficient (PTC) thermistors and zinc oxide varistors. NTC thermistor series application includes of surge current, temperature compensation, precision temperature test and temperature control with complete types and specifications. Group is the largest NTC manufacturer which has 45,000m2 workshops.