... .4 Layer rigid PCB 2.Layer:1-35, 3.good quality and reasonable price 3.UL,ISO9001,ISO14001,TS16949,CE,. 4 Layer ... and will be inspected according to IPC 6013 Class2 Standard. 3.The information about our's pcb Capability 1layer1-35 layer2MaterialFR ... -4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,FR-1,FR-23Board thickness0.2mm-7mm4Max.finished board side500mm ...