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作为一种战略矿产品,必须满足如下四条要求:供应来源有限;产地位于政治上不稳定地区;代用品不多;可大量用于军事工业。铬是符合上述所有条件的,而且,在美国和西欧都是把铬归入战略矿产品之列的。尽管铬矿石储量分布非常不均,约95%位于南非,但矿山生产能力并非象储量那样在地理分布上不平衡。南非和东方集团(系指苏联等社会主义国家—译者注)各占世界总生产能
As a strategic mineral product, the following four requirements must be met: limited sources of supply; place of production in a politically precarious area; small substitutes; and large quantities available for the military industry. Chromium meets all of the above criteria and is classified as a strategic mineral in the United States and Western Europe. Despite the very uneven distribution of the chrome ore reserves, about 95% are located in South Africa, but the productivity of mines is not geographically unbalanced as reserves. South Africa and the East Group (referring to the Soviet Union and other socialist countries - Translator’s Note) each of the world’s total production capacity