supply of stainless steel tubes and double ferrule fittings for lscn ( lhbscn ) coaches to material schedule no. icf / sk-10-2-632, issue status-01, rev-01, cs-01, cs-02, cs- 03, cs-04, & cs-05 and as per icf specification no. icf / md / spec-166, issue status-01, rev- 04, amd-01 & amd-02. ( safety item ) [ warranty period: 30 months after the date of delivery ] , stainless steel tubes and double ferrule fittings for air spring pneumatic control equipment and failure indication cum brake application device of lhb coaches to material schedule no. icf / sk-10-2-637, issue status-01, rev-01, as per icf specification no.icf / md / spec-166, issue status-01, rev-04 ( safety item ) . [ warranty period: 30 months after the date of delivery ]