supply of supply of retaining catch for sliding door of bcnhl wagon to rdso drg. no. wd-10068-s-18, alt. nil, item no.2(p). material should be conforming to is: 2062-2011, reaffirmed-2021, grade: e 450, quality -br with cu as per specifications enclosed.supply of retaining catch for sliding door of bcnhl wagon to rdso drg. no. wd-10068-s-18, alt. nil, item no.2(p). material should be conforming to is: 2062-2011, reaffirmed-2021, grade: e 450, quality -br with cu as per specifications enclosed.,supply of retaining catch for sliding door of bcnhl wagon to rdso drg. no. wd-10068-s-18, alt. nil, item no.2(p). material should be conforming to is: 2062-2011, reaffirmed-2021, grade: e 450, quality -br with cu as per speci fications enclosed. [ warranty period: 30 months after the date of delivery ] ]