... , ROHS Lead free HASL printed circuit board Multilayer Printed Circuit Board Lead free HASL printed circuit board Multilayer Printed Circuit Board 1.base material:FR ... ,v-cut,bevelingWe can provide 1-24 layer PCB printed circuit boards. In addition, we can provide PCB assembly. ... 20 Layers2Board materialFR4,FR4 Halogen free,TEFLON Rogers,Getek High-TG(TG>170),Aluminium base3Max.Board Size0457*660mm4Min. ...