FIELD: composite materials and their manufacturing technique. SUBSTANCE: composite item has electric insulating and/or heat insulating substrate covered on either side with protective layers. Composite material has protective layers formed by fluffy fibers of heat-resistant material on insulating substrate and heat-resistant impregnating resin. This material is suitable for use as base for metal layer to produce flexible printed circuits. EFFECT: improved protective characteristics of composite item, including its heat resistance. 15 cl, 3 tbl
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