Nonferrous Metals-Nickel, Cobalt, Lead, Tin, Zinc, Cadmium, Precious, Reactive, Refractory Metals and Alloys; Materials for Thermostats, Electrical Heating and Resistance Contacts, and Connectors

• 有色金属镍、钴、铅、锡、锌、镉、贵重金属、活性金属、耐熔金属及其合金;恒温、电热和电阻触点和电接头材料