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About Congolese Trading Company, Manufacturer, Supplier of Coltan, Niobium, heterogenites, ONTARIO., Canada.
About Copper Ores
We are offering copper ores. Copper is a chemical element with the symbol cu (from latin: cuprum) and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is used as a conductor of heat and electricity, a building material, and a constituent of various metal alloys.