पानी वाली टंकी की raft foundation beam का सरिया चेक करते हुए Abhay tiwari सर//RAFT FOUNDATION BEAM 

Raft foundation beam
RAFT FOUNDATION BEAM ka steel kaise check hotta hai,
beam me me kya kya dekhte hai ?
beam most important hai lap steel ka Jo hame check karna hotta
beam k ring ka size
cover bhi
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