... lighting. 2.Excellent dimensional stability 3.Used in HVAC circuit board PCB data:1.Excellent thermal conductivityLED lighting.2.Excellent dimensional ... Solid relay 5. High cost performance ItemDetailsprinciple productsprinted circuit board,single sided,double sided,multilayer,chip on board PCBcapacityDouble--100,000sq/year,4layer ... gold,gold finger,electronics gold plating,plating tin circuit board