supply of mast-t-150 ( 9.30 meters length ) : fabricated and galvanized t-series steel structures t-150 as per rdso drg no eti / psi / 37.mast-t-150 ( 9.30 meters length ) : fabricated and galvanized t-series steel structures t-150 as per rdso drg no eti / psi / 37., mast-t-150 ( 9.30 meters length ) : fabricated and galvanized t-series steel structures t-150 as per rdso drg no eti / psi / 37, rev-c using fabricators own steel and zinc, steel confirming to is: 2062:2011; is:800 gr-e-250 ( fe 410w ) quality a &is 808 / 1989 and zinc to is: 209 / 1992 and rdso spec no eti / ohe / 13 ( 4 / 84 ) with a & c slip no 1, 2 & 3 for galvanization. each t-150 mast of 9.30 mtrs length with approx. wt of 356.75 kg. [ warranty period: 30 months after the date of delivery ] sse / psi / spe , sr andhra pradesh 16.76 mt