2020??6??9???????????ó??????ITC????????????й?????????????Electrolytic Manganese Dioxide????????????????????臨??????????????????????????з??????????????????????????永???????????????????????????????????????????????????????????????????????????з??????????????Ч???????t??У?5??????????ó?????????????????

2007??9??12???????????????????й??????????????з????????????顣2008??8??11???????????????????й????????????????????????á?2013??9??3???????????????????й?????????????????????????????臨?????????顣2014??2??3???????????????????й??????????????????????????????臨????á?2019??12??2???????????????????й?????????????????????????????臨?????????顣2020??3??20???????????????????й??????????????????????????ο??????臨????á?

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