What is head tank in the closed cooling water system used for?A.for the release of air from the cooling waterB.providing expansion room for heated cooling waterC.a place for implementing water and water treatment agentD.all of the above

What is head tank in the closed cooling water system used for?

A.for the release of air from the cooling water

B.providing expansion room for heated cooling water

C.a place for implementing water and water treatment agent

D.all of the above

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What is head tank in the closed cooling water system used for?A.for the release of air fro