最終更新日:2024/07/29
Bentonites are commonly used in drilling muds for oil and gas wells.
正解を見る
Bentonites are commonly used in drilling muds for oil and gas wells.
編集履歴(0)
Bentonites are commonly used in drilling muds for oil and gas wells.
Bentonites are commonly used in drilling muds for oil and gas wells.