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CADAM和PPSA是全球高岭土生产领域最主要的2个供应商,他们的产品质量和储量都通过了广泛的认证。PPSA计划于2009年1月1日起每年减少其
CADAM and PPSA are the two largest suppliers of kaolin in the world, and their product quality and reserves are widely accredited. The PPSA plans to reduce it annually on January 1, 2009