supply of primary vertical damper for train-18, emu us & memu us coachesprimary vertical damper for train-18, emu us & memu us coaches,primary vertical damper for train-18, emu us & memu us coaches to drg.no. ( 727)train18/mc/ac-0-1-009, item-1, alt c--- and in compliance to rdso specification rdso/cg-1 8005, rev-02 (or latest)---- or en-13802 (latest revision). 1. firm has to submit oem drawings with detailed dimensions & 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 app roved from icf before manufacturing for bulk supply. 2. the firms who have already sup plied the same item need not get fresh prototype approval [ warranty period: 30 months af ter the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]