BB/EE Double-wall or B corrugated cardboard with reinforce pad Thickness: 2.5mm -15mm Load Capacity: 10kg to 50kg Corrugated paper, art paper, ivory board paper, offset paper, special paper Ivory board ( 250gsm , 300gsm , 350gsm ) Art paper ( 128gsm , 157gsm , 200gsm , 250gsm , ...