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一、球石日本年需求量为1.2—1.3万吨,其中从法国进口9000吨,从中国进口2000—3000吨,从朝鲜进口1000吨。二、土状石墨日本年需求量为40万吨以上,主要从南朝鲜和朝鲜进口。用于翻砂、农药、土木建筑。三、高岭土日本年进口量为60万吨,其中从美国进口50万吨,用作造纸涂布级瓷土每年需要36万吨;从南朝鲜、巴西和中国进口的高岭土品位
First, the annual demand of ball stone in Japan is 1.2-1.3 million tons, of which 9,000 tons are imported from France, 2000-3,000 tons are imported from China, and 1,000 tons are imported from North Korea. Second, the annual demand for earthy graphite in Japan is more than 400,000 tons, mainly imported from South Korea and North Korea. Used for turning sand, pesticides, and civil construction. 3. The annual import volume of kaolin is 600,000 tons in Japan, of which 500,000 tons are imported from the United States, and 360,000 tons per year is required for the application of paper grade clay; the kaolin grades are imported from South Korea, Brazil, and China.