| http://www.w3.org/ns/prov#value | - In addition, the particle diameter of the water-absorbent resin, usable in the present invention, is usually in the range of 10???1,000 ??m, preferably 50???800 ??m, more preferably 75???600 ??m (but not including 75 ??m), particularly preferably 150???500 ??m (but not including 150 ??m), on average.
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