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前言对再生铝工业的首要印象是其产品与原生铝产品相比有些逊色。但是该工业起着极其重要的作用。从节能、环境保护来看,新的节能和污染控制技术的发展,不仅会改善其自身的
Foreword The primary impression on the recycled aluminum industry is that its products are somewhat inferior to those of primary aluminum products. But the industry plays an extremely important role. From the perspective of energy saving and environmental protection, the development of new energy saving and pollution control technologies will not only improve their own