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日本聚乙烯醇(PVA)的需要量1992年曾达到创纪录的21.1万t,预计1995年将超过这一水平,达到近21.5万t。维尼龙代替石棉纤
The demand for polyvinyl alcohol (PVA) in Japan reached a record high of 211,000 tons in 1992 and is expected to exceed this level in 1995 to nearly 215,000 tons. Vinyl instead of asbestos fiber