... , board thicknesses 2.0mm, Min. hole size: 0.29mm,HASL LED pcb board :AL,copper 1oz, board thicknesses 2.0mm, Min. hole ... /0.17mm, made in Guangdong China.Our Production Capability for PCB Layer: 1 to 28 layersMaterial type: FR-4, CEM-1 ... (0.075mm)- Min. Line Spacing: 3mil (0.075mm)Surface finishing: HASL / HASL lead free, HAL, Chemical tin, Chemical Gold, Immersion Silver/Gold ...