railway RRB JE (CBT I + CBT II) Mock Test 2024 Construction Materials and Management Building Component

Code of practice for industrial ventilation is:

1

IS 3103 ∶ 1975

2

IS 1950 ∶ 1962

3

IS 2440 ∶ 1975

4

IS 2526 ∶ 1963

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