notice inviting tender for supply of plugs for tubes of carbamate condenser in urea plant notice inviting tender for supply of plugs for tubes of carbamate condenser in urea plant , plugs for tubes of carbamate condenser ( e-604 ) of urea plant as per drawing no. 52-m-184 moc of plugs : uns s31050 ( 25cr 22ni 2mo ) a ) scope of inspection : as per appendix j of ibr 1950 b ) deliverables : endorse of applicable form as per ibr c ) material testing acc. spc. cr. ur g510 rev. 04 note:- 1 ) vendor shall submit material test certificate & huey test ( igc a262 practice c ) certificate. 2 ) vendor shall submit original ibr certificate of plugs in prescribed format along with the supply. , testing & inspection charges ( tpi and ibr )