... ,width:1600mm 3,material:PP plastic 4,OEM & DIY cardboard display 1.cardboard display specifications: 2.cardboard display advantages: environmental protectrecycled material.materialPP(polypropylene),PE(polyethylene).hollow ... , hardness is good.Compared with paper item moistureproof, corrosion.3.cardboard display applicatioin industries:I, Non-toxic, non-polluting, waterproof, shockproof, anti ...