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List three materials that build mining head gear​
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List three materials that build mining head gear​

User Liad
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Answer:

Materials that are used to make a mine shaft headgear Modern headframes are built out of steel, concrete or a combination of both. Timber headframes are no longer used in industrialized countries but are still used in developing nations.

Step-by-step explanation:

User Mike Mitterer
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4 votes

Answer:

Materials that are used to make a mine shaft headgear Modern headframes are built out of steel, concrete or a combination of both. Timber headframes are no longer used in industrialized countries but are still used in developing nations.

Step-by-step explanation:

User Ironcladgeek
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