pcb assembly 1.thicknese:FR4 1.6MM 2.Colour:BLACK 3.Layer:2 4.Finished:HASL pcb manufacturer ITEMS:SPECIFICATIONLAYER:2 -10layerBOARD MATERIAL:FR ... -3, High TG, FR4 Halogen Free,FR-1,FR-2 BOARD THICKNESS:0.6-3.2mmCAMBER:D>5.0+/-0.076mm ... ,ROHS,ISO9001,T/S 16949ASSEMBLY:LEDA FREE,NOT LEAD FREE pcb assembly