1) Good resistance and high stiffness paper board 2)The size can be customized 3)1.0~5.0mm. 4)600~3000gsm 5)ApplicationsBook covers,lever arch files,Ringbinders,Files,Albums,Diaries,Game boards,Displays,Showcards,Puzzle and game boxes,Luxury packaging6)Color:fully grey,grey core.grey face and grey face7)Brands:FU GUI ZHU,Grey Rabbit,Crystal8)Past ISO9001:2008,FSC.ROHS,PFOS,Halogen Testing Report, ...