supply of set of twin pipe arrangement. , flange and socket for 20 mm nb(special) pipe to rdso drg. no. wd-83062- s-07, item no.2 & 3, alt. 6, conforming to rdso spec. no. 04-abr-2019 (rev.02 of december 2019) uvam id :3100389007 [ warranty period: 30 months after the date of delivery ] ] , 32 nb fixed flange. drawing no. : rdso,s drg. no -wd-83062-s-06, alt. 4, item no.1. materi al and specification : as per drawing and conforming to rdso spec. no. 04-abr- 2019 (rev. 2 of december 2019) uvam id :3100389007 [ warranty period: 30 months after the date of delivery ] ] , flange with socket for 20 nb branch pipe. drawing no.: rdsos drg.no.wd-83062- s-07, alt.-6, item no. 2 & 3, mat. & spec.: as per drawing and conforming to rdsos spec. no. 04 -abr-2019 (rev. 2) of december 2019. uvam id :3100389007 [ warranty period: 30 months after the d ate of delivery ] ] , flange with socket 32 mm. for brake pipe. drawing no . :rdso,s drg. no. wd-83062-s-7,alt. 6, item no. 2 & 3. material and specification: as per drawing and conforming to rdso spec. no. 04-abr-20 19 (rev. 2 of december2019). uvam id :3100389007 [ warranty period: 30 months after the date of deli very ] ] , kit of gasket for pipe flange consisting of 2 sizes for freight stock. drawing n : rdso drg. n o. wd-83062-s-7, alt. 6, item no. 1. material and specification: as per drawing and conforming to rdso?s spec. no. 04-abr- 2019 (rev. 02 of december 2019), details of kit : (1) gasket for 32 mm pipe flange - qt y /kit : 4 (2) gasket for 20 mm pipe flange - qty/kit : 6 uvam id :3100389007 [ warranty period: 30 mon ths after the date of delivery ] ] , seamless pipe in length of 5 to 7 mtrs. material specification is:1239 (pt-i)/2004, amend.4, hfs, grade: heavy, nominal bore- 32mm. uvam id :3100389007 [ warranty period: 30 months after the date of delivery ] ] , seamless pipe in length of 6 mtrs., nominal bore 20 mm . material and specification -- is: 12 39 (part- i): 2004 (rev. 6), amend. no. 6 of june 2021, plain ended without socket, hfs, and grade: heavy. uvam id :3100389007 [ warranty period: 30 months after the date of delivery ] ]