工业上应用的金属,可分为黑色金属和有色金属。黑色金属即钢铁金属范围内的金属,包括铁、锰、铬等。其它统称为有色金属。有色金属还可以分作四组:重金属(铜、铅、锌、镍、锡等),轻金属(铝、镁等),稀有金属(钨、钼、钒、钴等),贵金属(银、金、铂等)。其中用途最广的,有铜、铅、锌、铝、钨、锑、锡等。纯铜(紫铜),导电性很高,最适于制造电线,世界铜产 Industrially applied metals can be divided into ferrous metals and non-ferrous metals. Ferrous metals are metals in the steel metal range, including iron, manganese, and chromium. Other collectively referred to as non-ferrous metals. Non-ferrous metals can also be divided into four groups: heavy metals (copper, lead, zinc, nickel, tin, etc.), light metals (aluminum, magnesium, etc.), rare metals (tungsten, molybdenum, vanadium, cobalt, etc.), precious metals (silver, gold, Platinum, etc.) Among the most widely used are copper, lead, zinc, aluminum, tungsten, antimony, and tin. Pure copper (copper), high conductivity, the most suitable for the manufacture of wire, the world’s copper production