mi sembra più probabile che si tratti di foil da applicare a oggetti in plastica dura, vedi, dal link qui sotto:
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PLASTICS FOILS
These foils, predominately gloss foils are available in a wide range of colours from XXX, YYY and ZZZ. Various golds and silver are available for a variety of plastic substrates. Some of these are imports but we stock AAA's new foils for hard plastics
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