Teflon-Board(pcb board) 1:Teflon-Board 2:Standard dimension: 490 X 490mm 600 X 500mm 3.UL,RoHS,SGS, ISO Approved Leadsintec have the ... for discussion) . Standard thickness: 1. 0, 1. 5, 2. 0, 3. 0 mm(optional dimension for discussion) . Copper foil thickness: 35um ... , Industrial power, Solar-energy batter base, heat sinker ect. Teflon-Board with grey color for control board