| 摘要 |
1461266 Lead alloy battery grids ELECTRIC POWER STORAGE Ltd 15 March 1974 [15 March 1973] 12571/73 Heading C7A An electric storage battery grid is made from an alloy comprising:- the balance apart from incidental elements and impurities, being lead. The structure has substantially even grain size and shape with substantially no grains more than 0À5 mm across. |
