CEM-1 bare PCB board: 1.circuit board transparent 2.mainly for mid-east,Africa ... .9 days for bulk 4.T/T,ESCROW CEM-1 bare PCB board:1.circuit board transparent2.mainly for mid-east,Africa ... 9 days for bulk4.T/T,ESCROW Base materialFR-1(94v0),FR-4,CEM-1,rogersMax Board size600*600mmBoard thickness0.4-3.2mmCopper thickness0 ... marketsUSA,Korea,Mid-east(Egypt,Iran,Isreal,Syria),Europea CEM-1 bare PCB board