... 4, Brightness: 96-110 5, ISO9001 CE certificate A4 copy paperMain Type: B5, A4, B4, A3Weight: 70gsm, 75gsm and 80gsmSize: standard size ... (B5: 182mm×257mm / A4: 210X297mm / B4: 250X354mm / A3:420X297mm)Material: 100% wood pulpBrightness: 98 ... copy of B/L by T/T or L/C A4 copy paper