supply of primary vertical damper for train-18primary vertical damper for train-18,primary vertical damper for train-18, emu us & memu us coaches to drg.no .train18/mc/ac-0-1-009, item-1, alt b--- and in compliance to rdso specification rdso/cg-18 005---- or en-13802 (latest revision). 1. firm has to submit oem drawings with detailed d imensions & characteristics. 2. type test shall be conforming to rdso cg-18005 (latest revision) or en- 13802. 3. service trials shall be as per rdso cg-18005 (latest revision). special condition : 1. proto type sample (including type test)to be got approved from icf before manufacturing for bulk supply. 2. the firms who have already supplied the sam e item need not get fresh prototype approval. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permi tted: max 8 lacs ] ]