Teflon-Board(pcb board) 1:Teflon-Board 2:Standard dimension: 490 X 490mm 600 X 500mm 3.UL,RoHS, ... base, Ceramic and Teflon Board. Typical Feature . Standard dimension: 490 X 490mm 600 X 500mm (optional dimension for discussion) . Standard thickness: 1. 0, 1 ... , Industrial power, Solar-energy batter base, heat sinker ect. Teflon-Board with grey color for control board