铝是仅次于钢铁而广泛应用于各行各业的有色金属。
Aluminum is second only to iron and steel and nonferrous metals are widely used in all walks of life.
铸铁是汽车四项主要构造材料之一，其重量份额一般居第二位，仅次于钢，而高丁铝和塑料。
Cast iron is one of four main construction materials in automobiles. Its weight share is second to steel and higher than either aluminum or plastics.
铸铁是汽车四项主要构造材料之一，其重量份额一般居第二位，仅次于钢，而高丁铝和塑料。
Cast iron is one of four main construction materials in automobiles. Its weight share is second to steel and higher than either aluminum or plastics.
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