supply of socket for 20 mm nominal bore pipe, socket for 32mm nb flange, 20mm special socket & stainless steel pipe 20 mm nominal.socket for 20 mm nominal bore pipe, socket for 32mm nb flange, 20mm special socket & stainless steel pipe 20 mm nominal.,socket for 20 mm nominal bore pipe (swivel flange) for air brake coaches to drg no. icf/sk-3-5-232, alt-d, col.ii, item.11. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , socket for 32mm nb flange welded joint item.4 of drg.no.wd-83062-s-06 alt. 4. [ warrant y period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , 20mm nb (special socket) as per drg no. wd 83062-s-07 alt.6 item no.2 material specification is2062:2006 e250, item to be electro galvanised for anti-corrosive property. [ warranty peri od: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , stainless steel pipe 20 mm nominal dia with plain ends in a standard length of 6.0 to 6.3 mtr s. for passenger stock conforming to rdso spec.no.04-abr-2002 (rev.02 of dec-2019) and material to ast m a 312 schedule-40s gr.tp 304 (seamless).thickness of pipes to be governed by is:1239 (part-i) heavy c- class [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] => limited