Dandong Guotong Electronic Components Co.,Ltd is located at “Dandong high technology industrial development zone-Renchuan industrial campus”. The factory area is 10000 square meters. The company belongs to hi-tech enterprises , which is specialized engaged in scientific researching 、developing、producing of electronic components. Majority of production equipments and testing instruments introduced from US, annual output reached 50000000 pieces. Our mainly products : PTC Thermistors ,Surge Suppressors, Sensors ,Rejectors ,Exhaust Temperature Protectors And ten more series of products .