摘要 |
PURPOSE:To prevent a container from scratches and the outer surface of a container from elimination of marking even if scratches are generated by collision or rubbing by forming a synthetic resin protection layer on the outer surface of a container. CONSTITUTION:A plate group is accommodated in a container, then the whole outer surface of the container is covered with fluorine resin before electrolyte is poured into the container. A 0.3-1.0mm. thick resin protection layer is preferable. By this protection layer, damage to printed marking on the container is eliminated, and complaint to appearance damage is decreased. |