pcb manufacturer 1.thicknese:FR4 1.6MM 2.Colour:BLACK 3.Layer:2 4.Finished:HASL pcb manufacturer ITEMS:SPECIFICATIONLAYER:2 -10layerBOARD MATERIAL:FR-4, CEM-1, ... CEM-3, High TG, FR4 Halogen Free,FR-1,FR-2 ... /black/white/red/blue CERTIFICATE:UL,ROHS,ISO9001,T/S 16949ASSEMBLY:LEDA FREE,NOT LEAD FREE pcb manufacturer