... 4.Good quality,Best service 1/6 HP Copper Motor /Water Pump /Control Panel /Sensor for Air Cooler1.Function:cooling, humidifying and ... PCB Specificationproviding OEM service to all sorts of printed circuit board assembly1Layer1-20 layer2MaterialFR-4,CEM-1,CEM-3,Hight ... Halogen Free,FR-1,FR-23Board thickness0.2mm-7mm4Max.finished board side1500mm*500mm5Min.drilled hole size0.5mm6Min.line width0.075mm( ...