Grey cardboard is double grey industrial cardboard, which is produced from a kind of recycled waste paper. The cardboard gray papers are divided into single grey, double grey, and full grey, which belong to environment-friendly packaging materials. Xiaolong offers high-quality grey back paperboard that is versatile, durable, and eco-friendly. Available in various thicknesses and sizes, our grey paperboard is perfect for a range of applications. The standard size of grey paperboard is 700*1000mm, 787*1092mm, 889*1194mmm sheets or 700mm, 787mm, 889mm, 1000mm, 1092mm, 1194mm roll.