... main products include LR/AG button cells, SR/SG silver oxide button cells, CR lithium manganese button cells, 12V (23V/27V) ... EC standard.In 2004, we successfully manufactured environmentally friendly button cells, which contain mercury of less than 5/1 ... widely applied to wristwatches, computers, music cards, electronic toys, cameras, medical instruments, shoes lamps, thief alarms, remote controls and ...