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High purity chemicals have been the cornerstones of Tokyo Ohka since its foundation, TOK's inorganic and organic high purity chemicals, which are primary materials indispensable to any modern industrial society, are commercially produced under the strictest quality controls and standards. They are used in many industrial fields and for many different purposes, such as chemical, electronics, cosmetics, pharmaceutical or as reagents.
The technology developed in this field is made full use of in microprocess technology with its slight tolerance of impurities.
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