| 摘要 |
PURPOSE:To prevent a container and a cover from scratches and the outer surfaces of a container and a cover from elimination of marking even if scratches are generated by collision or rubbing by forming synthetic resin protection layer on the outer surfaces of a container and a cover. CONSTITUTION:A plate group is accommodated in a container, then the whole surfaces of the container and a cover are 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 markings on the container and the cover are eliminated, and complaint to appearance damage is decreased. |
