Elb Gate Boom Section-2 Fabrication From G.I. Sheet Octagonal Shape With Spot Welded Sleev E As Per Specification No- Rdso/Spn/208/2012 Version 2.0 Or Latest As Per Drawing No-Rdso/S11600 Ver 2. 0 Of G.I. Boom. [ Warranty Period: 30 Months After The Date Of Delivery ] ]