rate contract for,manufacturing & supply of 1 in12 bg 60 kg weldable cms crossing (wcms crossing) on psc sleepers in accordance with rdsos standard drawing no. t-6412 , alt.-3 (or latest alterations) inc luding supply of a set of 6mm thick nylon chord reinforced grooved sole plate as per irs specn. t-55 with latest alterations required beneath wcms crossing as mentioned in rdsos standard drawing ex cluding standard fish plates, fish bolts and nuts, e.r clips, insulating liner. rails required for manufact uring of wcms crossing will be arranged by the supplier at their own cost (grade of rails should be as per latest guideline of the railway board or rdso),as per irs specn. irs:t-29-2023 with latest alterati ons.the term latest alterations wherever used will be mean the alteration up to five days before the date of opening of tender. [ warranty period: 30 months after the date of delivery ] ]