318 grey card board grade products are offered for sale by suppliers on Alibaba.com, of which paper & paperboards accounts for 24%.
A wide variety of grey card board grade options are available to you, such as craft, clothing and shoe.You can also choose from waterproof, recyclable and eco-friendly grey card board grade,as well as from wood pulp, mixed pulp, and straw pulp grey card board grade, and whether grey card board grade is chemical pulp, chemical-mechanical pulp, or mechanical pulp.