... make the thinkness of grey board from 0.4mm to 3.0mm and include full grey board, two-side,glossy,single grey board ect.. Maybe you ... fact and become unmeaning.Our product Include full grey board, two-side,glossy,and single grey board ect...and mainly used in various packing, ... free to contact me. That's my honour.Below information is a approximate date of our grey board.Thinkness standand :100gsm=0. ...