| http://www.w3.org/ns/prov#value | - Thus by incorporating rubber along with the pigment or other additives in the concentrated resin it is possible for the manufacturer to produce acceptable molded objects by combining a natural resin, i.e. a resin lacking in substantial quantities of additives, and small quantities of concentrate resin containing the desired quantity of pigments, stabilizers, fire retardants or other additives.
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