Supply Of Air brake pipe (C&W Item)

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Supply Of air brake pipe (c&w item) , air brake pipe size 20 mm with flange and socket to rdso drg. no. wd-80007-s-11 alt-1 2 or latest , item no. 11. confirm to rdso str-04-abr-19 rev.-2 of dec 2019.material of pipe as per r dsos letter no. mw/apb dated may 22,2020. stainless steel to astm-a312 schedule 40s gr. tp 304 (e rw) [ warranty period: 30 months after the date of delivery ] ] , pipe seamless 32 mm bore complete with socket 32 mm, flange 32 mm and fixed flan ge 32 mm to rdsos drg no. wd-80007-s-11 alt no.12 or latest, item no. 3,12,13 &14, and pipe will b e seamless to is: 1239 (part-1) heavy grade (as per rdsos letter no. mw/apb dtd.22.05.2020). [ wa rranty period: 30 months after the date of delivery ] ] , air brake pipe size 32 mm with flange and socket to rdso drg. no. wd-80007-s-11 alt-1 2 or latest , item no. 1. confirm to rdso spec no. 04-abr-19 rev.-2 of dec 2019 & material of pipe as per rdsos letter no. mw/apb dated may 22,2020, seamless to is:1239(part-1) heavy grade [ warrant y period: 30 months after the date of delivery ] ] , stainless steel pipe 20 mm bore complete with socket 20mm, flange 20 mm, socket 20 mm (special) and flange 20 mm (special) to rdsos drg. no. wd-80007-s-11,alt no. 12 or latest it em no. 8, 15, 16, 17 & 18, and pipe will be stainless steel to astm-a312 schedule 40 s gr.tp 304 (er w). (as per rdsos letter no. mw/apb dtd. 22.05.2020) [ warranty period: 30 months after the date of delivery ] ]