I arahina e te Manatū Taonga Taiao o te Tangata o Haina me te Tianjin Municipal People's Government, i whakahaerehia e te China Mining Federation, i whakahaeretia e Tianjin Mining Expo International Exhibition Co., Ltd., te 2021 (rua tekau ma toru) Haina International Mining Huihuinga w...
Pānuitia atu