... Min. hole size: 0.5mm 4. ROHS Street led lamp board:AL,copper thickness:2oz, 2 Layer board,board ... , Our Production Capability for PCBLayer: 1 to 28 layersMaterial type: FR-4, CEM-1, CEM-3, High TG, ... /Gold, OSP, Gold plating Solder Mask Color: Green/Yellow/Black/White/Red/BlueTolerance - Shape tolerance: ±0.13 - Hole tolerance: ... , UL, ISO9001-2000, ISO14001Factory direct price Street LED Lamp Board