A ductile, malleable, reddish-brown metallic element that is an excellent conductor of heat and electricity and is widely used for electrical ...
Share a dream with cooper-copper... Symbol Cu A ductile, mal
Symbol Cu
A ductile, malleable, reddish-brown metallic element that is an excellent conductor of heat and electricity and is widely used for electrical ...
A ductile, malleable, reddish-brown metallic element that is an excellent conductor of heat and electricity and is widely used for electrical ...