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东邦锌公司契岛冶炼厂是日本最大的炼铅厂,年产电解铅约60,000吨,其流程为鼓风烧结、鼓风炉熔炼和电解精炼。
Toho zinc smelter is the largest lead smelter in Japan, with an annual output of about 60,000 tons of electrolytic lead, the process of blast sintering, blast furnace smelting and electrolytic refining.