... main products include LR/AG button cells, SR/SG silver oxide button cells, CR lithium manganese button cells, 12V (23V/27V) ... combination button cells, green cylindrical type (AA, AAA) carbon, alkaline batteries, 9V (6F/22) batteries, rechargeable ... EC standard.In 2004, we successfully manufactured environmentally friendly button cells, which contain mercury of less than 5/1 ...