Allowances may be made for the expansion and contraction in piping by the use of expansion joints or ().A.UnionsB.Retractable flangesC.Union bulkhead fittingsD.Bends or loops in the line

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Allowances may be made for the expansion and contraction in piping by the use of expansion joints or ().

A.Unions

B.Retractable flanges

C.Union bulkhead fittings

D.Bends or loops in the line

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