| http://www.w3.org/ns/prov#value | - Various materials can be used as the carrier, e.g. papers weighing approximately 80 to 120 g/m2 preferably 100 g/m2, plastic film or sheets comprising polyethylene, polyvinylchloride, polyvinylidenechloride, polyester and other inert polymers or thin metal foils, for example, those made from aluminum.
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