... 80gsm - 350gsmduplex grey board: 250gsm-1500gsmcorrugated paper: K, A, B, C; three-layer, five-layer, seven-layer, single face ... potential delays due to additional customs inspections, poor weather conditions or other unforeseeable events. 100% Return Policy We stands behind ... costs. Indeed, we takes great pride in its commitment to customer satisfaction. However, certain circumstances are beyond our ...