| http://www.w3.org/ns/prov#value | - Furthermore, in the case that the filled material is subjected to a retort treatment or a high retort treatment, high-density polyethylenes and polypropylenes such as polypropylenes, propylene-ethylene random copolymers, propylene-ethylene block copolymers can be used, and above all, polypropylenes, a mixture of polypropylenes and elastomers such as ethylene-propylene rubbers, and mixtures of poly
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