Ka tae atu ngā Taputapu Maimoatanga Hau Maroke o Hangzhou ki te Inter Battery Expo 2019 i Seoul, Korea mai i te 16 ki te 18 o Oketopa. He kaihanga rongonui mātou mō te whakamaroke haumākū, te whakamaroke rūma maroke me ētahi atu hua whakahaere haumākū.