872 20mm corrugated cardboard products are offered for sale by suppliers on Chovm.com, of which paper boxes accounts for 38%, paper & paperboards accounts for 2%.
A wide variety of 20mm corrugated cardboard options are available to you, such as craft, clothing and shoe.You can also choose from waterproof, recyclable and eco-friendly 20mm corrugated cardboard,As well as from wood pulp, mixed pulp 20mm corrugated cardboard,and whether 20mm corrugated cardboard is coated, or uncoated.