1304 thick gray cardboard products are offered for sale by suppliers on Alibaba.com, of which paper & paperboards accounts for 45%, paper boxes accounts for 22%.
A wide variety of thick gray cardboard options are available to you, such as fur, photo frame and bread.You can also choose from wood pulp, mixed pulp and straw pulp thick gray cardboard,as well as from chemical-mechanical pulp, chemical pulp, and mechanical pulp thick gray cardboard, and whether thick gray cardboard is gravure printing, offset printing, or digital printing.