... and Gold Thickness: 1.0mm, 1.2mm, 1.6mm selectable Cu thickness: 2.5OZ Solder mask: PC401, Green oil mask with double side Surface finished ... and E-test Workmanship compliant with ISO9001: 2000 ROHS Compliant1Layer1-22 layer2MaterialFR-1,FR-2,FR-4,CEM-1,CEM-3,Hight TG,FR4 ...