Standard box types produced without either top or bottom lid. In general, they re telescopically interlockable, and used as top and bottom lid for each other.
Usually their lids are bondable in the center of the depth-panel as a standard. As required, they may be produced as complete lid or overlapping lids.
Usually they are used in all sectors of storage, warehousing, transport, etc. purposes.
May be produced in all waves other than E (Micro) wave.