tender for supporting hook for screw coupling with bracket to icfs drg. no. t-2-3-013, alt. j /3, item nos.1 to 3 in assembled condition. materials & specification : [a] itemno.1(part drg. no.t-2-3-012 alt. i /2) of assembly drg. no.t-2-3-013 alt.-j /3, consists of two items, item no.1 (flatbar): matl. to is:2062-2011, amend-1/2012 gr.e250 cuc, and item no.2 (hook): matl. to ,is:2062- 2011,amend-1/2012, e250c. [b] item no.2 (part drg. no. t-1-2-020 alt-e/2) of assembly drg. no. t-2-3-013 alt.-j /3,is:2062-2011,amend-1/2012 gr.e250a. [c] item no. 3 of assembly drg. no. t-2-3-013 alt.-j /3: matl. as per drg.