| http://www.w3.org/ns/prov#value | - The method of modifying the temperature of a mold for molding articles of plastic or like materials, the mold including a plurality of vertically extending internal passages for a heat transfer fluid, the method comprising:A. connecting the internal passages of the mold into a closed loop with a heat exchanger, the relative elevations of the mold and the heat exchanger being such that a heat trans
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