2908 400gsm duplex board products are offered for sale by suppliers on Alibaba.com, of which paper & paperboards accounts for 51%.
A wide variety of 400gsm duplex board options are available to you, such as craft, clothing and shoe.You can also choose from waterproof, recyclable and eco-friendly 400gsm duplex board,as well as from wood pulp, mixed pulp, and bagasse pulp 400gsm duplex board, and whether 400gsm duplex board is chemical pulp, chemical-mechanical pulp, or mechanical pulp.