original packaging; master carton
Logistics term for the outermost container as received from the manufacturer, often containing multiple inner cartons or individually wrapped items. The reading もとこうり is less common.
These products are stored in the warehouse in their original packaging.
Please tell me how to inspect the goods without opening the master carton.
Compound of 元 (original) and 梱 (packing, bale). The reading もとこん is a standard combination; もとこうり uses the less common kun'yomi こうり for 梱.