supply of flange coupling set as per rdso , flange coupling set as per rdsos spec.no.04- abr-2019, rev-02 of december 2019 co nsisting of 09 items as listed below:- (1) flange a32 (for 32 n.b pipe) and socket for moving flange for dia 32 mm pipe as per rcfs drg. no.cc-35321,alt-nil, cc-35322,alt-b, qty/kit-01 no. (2) moving flang e (for 25 n.b pipe) and socket for moving flange for dia.25 bore pipe as per rcfs drg. no.cc-35313,a lt-e, cc-35314,alt-b qty/kit-25 nos. (3) flange a20 for 20 n.b pipe and socket a20 as per rcfs drg. n o.cc-35316,alt-c, cc-35317,alt-c qty/kit-50 nos. (4) socket for moving flange for dia.25 bore pipe as p er rcfs drg. no.cc-35314,alt-b,qty/kit-05 nos. (5) tee flange 20x20x20 n.b as per rcfs drg. no.cc- 35336,alt-b,qty/kit-01 no. (6) tee flange 25x25x20 n.b as per rcfs drg. no.cc-35337,alt-c,qty/kit-02 no. (7) fixed flange(for 25 n.b pipe) as per rcfs drg. no.cc-35312,alt-c,qty/kit-15 nos. (8) socket for 15 mm nb pipe as per rdsos drg. no wd-83062-s-07,item-2,alt-6.qty/kit-05 nos. (9) fixed flange for 20 mm n.b pipe as per rdso%u2019s sk-85187,item-1,alt-4 qty/kit-04 nos. [ warranty period: 30 months after the date of delivery ] ]