毛主席教导我们:“中国人民有志气,有能力,一定要在不远的将来,赶上和超过世界先进水平”。自从十六世纪以来,国内外都先后采用反射炉炼锡,一直沿用至今。到1972年,西德在印度尼两亚投资新建的年产2.75万吨的炼锡厂,还建造了三座反射 Chairman Mao taught us: “As long as the Chinese people are ambitious and capable, they must catch up with and surpass advanced world standards in the near future.” Since the 16th century, both domestic and foreign refineries have been tin refining, has been in use today. By 1972, West Germany invested in a newly built 27,500-tonne tin-smelter in Indonesia and Asia and built three reflections