... A4 copy paper 75gsm/80gsm 1.big manufacturer 2.can do OEM service 3.sample is ok and free 4.high quality A4 copy paper ... and free4.high quality-Size:A4,A3,8.5"x11",11*17'' -Base Weight:80gsm,75gsm,70gsm -Whiteness: 92 ... wood pulpMaterial: 100% wood pulpSize: A4, A3, 8.5"x11", 8.5"x14"Base Weight: 80gsm, 75gsm, 70gsmWhiteness: 92-96%, ... and bulkyNo see through-print both sides A4 copy paper 75gsm/80gsm