supply of retention tankretention tank,retention tank with s-trap & without pressurised flushing (rh) to drg.no. 32963204, alt-nil and as per specn. mdts-26001, rev-04 (except clause 3.5 - pressurised fl ushing system) for special terms and condition for procurement of retention tan k system for lhb coaches. [ warranty period: 30 months after the date of delivery ] ] , retention tank with s-trap & without pressurised flushing (lh) to drg. no. 329-6-3-203, alt-b and as per specn.mdts-26001, rev-04 (except clause 3.5 - pressurised fl ushing sytsem) for special terms and condition for procurement of retention tan k system for lhb coaches. [ warranty period: 30 months after the date of delivery ] ]