In April,2020, the filling center filled 69,000 cubic meters in a single month, filing up all the insufficient volume in the early stage of mining and achieving the balance of mining and filling for the first time. - Deeds - About

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In April,2020, the filling center filled 69,000 cubic meters in a single month, filing up all the insufficient volume in the early stage of mining and achieving the balance of mining and filling for the first time.