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After AT Welding First train is to be passed after ? (i) 20 Minutes from pouring of weld metal. (ii) 35 Minutes from pouring of weld metal. (iii) 30 Minutes from pouring of weld metal.* (iv) 25 Minutes from pouring of weld metal.

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After AT Welding First train is to be passed after ?
 (i) 20 Minutes from pouring of weld metal.
 (ii) 35 Minutes from pouring of weld metal.
 (iii) 30 Minutes from pouring of weld metal.*
 (iv) 25 Minutes from pouring of weld metal.
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(iii) 30 Minutes from pouring of weld metal.*
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