... PCB products, under RoHS, UL, SGS etc. certififcated Copper Clad Laminates sheet.Include CEM1, FR1, FR2, CEM3, FR4 ... .Features: 1) The end face of foil covered board should be tidy without any delamination .and crackle. ... deep nick, pitting and glue spot on the copper foil covered face is not allowed. Any color ... electric appliances and other lines . copper clad laminates sheet,FR1,FR2,FR4,CEM1,CEM3