| http://www.w3.org/ns/prov#value | - The blend of components (A) and (B) is 30 to 100% by weight, especially 50 to 90% by weight of component (A) and 0 to 70% by weight, especially 10 to 50% by weight of component (B) provided that the total of components (A) and (B) is 100% by weight.
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