废钢铁是国家的宝贵资源,在国民经济中具有重要作用。马克思在《资本论》中指出:“生产排泄物(即生产上所说的废料)会在同一产业部门或另一个产业部门再转化为新的生产要素”。马克思又说:“这所谓废料,几乎在每一种产业上都起着重要作用”。废钢铁就是马克思所说的“生产排泄物”之一,它不但在产生 Scrap iron is a precious resource for the country and plays an important role in the national economy. In Capital, Marx pointed out: “The production of waste (that is, the waste produced in the field of production) will be transformed into new factors of production in the same industry sector or in another industrial sector.” Marx added: “This so-called waste material plays an important role in almost every industry.” Scrap steel is one of the “productive waste products” that Marx put it, not only in its production