jack post
noun1
Business, Construction, Manufacturing A telescoping steel post used for the temporary support of ceilings, walls, and trenches.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
Business, Construction, Manufacturing A telescoping steel post used for the temporary support of ceilings, walls, and trenches.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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