1.Double-sided ALU pcb immersion gold 2.Competitive price and ... ISO, UL,ROHS compliant Double-sided Alu PCB Circuit Board A factory with 12 years experience Aluminum base, 2. ... 1.1, 1.5, 2.0 and 3.0Dielectric for aluminum base board: PP or dielectric filmBreakdown voltage: >2500VBoard thickness: 1.0, 1.2, 1 ... sink hole, thermoelectricity separate Double-sided ALU pcb circuit board with immersion gold