... .0oz Inner Cu wight 0.5oz ~ 3.0oz Laminate Materials FR-4,FR-1,,FR-2,CEM-1,CEM-3 ... .0008” (0.02mm) Aspect ratio 20(5:1) Solder Mask Color green,light green,white,black,dark brown,yellow ... ,red,blue Min. solder mask clearance 0.003”(0.07mm) Thickness 0.0005 ... ° Others UL Cert. YISO Cert.ISO9001TS16949YISO14000Y Factory Silhouette: green solder mask double sided pcb board