short dated tender - corrigendum : supply of contact wire parallel cl groove pg1031-3 , contact wire parallel clamp groove pg1031-3 as per rdso drawing no. eti/ohe/p/10 30-3, rev-a ,complete set. (a) contact wire parallel clamp part no-1031-3, material: material :tin bronze- s pecification ls:306 or aluminium bronze- specification ls:3091, number off-2 (b) bolt m-16x50/38 with nut, part no-10/16n, material: stainless steel; specification eti/ohe/18,number off -1(c) spring washer , materia l phosphor bronze, specification eti/ohe/18,number-1.(warranty period : upto 30 months from the date of delivery.) [ warranty period: 30 months after the date of delivery ] ]