railway DFCCIL Executive 2025 Mock Test Draftsman Doors, Windows and Ventilators

एक डोर फ्रेम के ऊपरी क्षैतिज अवयव को ______ कहा जाता है

1
सिल 
2
हेड
3
क्राउन
4
फ्रेम 
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