DS DS/EN 61249-2-13
DS DSEN 61249-2-13 1999-SEP-10 Materals for prnted boards and other nterconnectng structures - Part 2-13 Sectonal specfcaton set for renforced base materals clad and unclad - Cyanate ester non-woven aramd lamnate of defned flammablty copper-clad