Shusu Nano-science Co, Ltd, an ISO 9001 and ISO14001 quality certificated company which is a leading manufacturer of electronic ceramic materials since 1988. Our main products bismuth oxide, nickel oxide, cobalt oxide, silicon oxide which are widely applied to fields as electronic component industry, arrester industry; products as varistor, thermistor, NTC, magnetic material, ceramic capacitor; customer as EPCOS etc.