Steel tubes galvanised isi mark to is:1239(part-1)/2004 nominal bore dia 20mm.

Seamless pipe nominal bore 32mm dia, heavy grade

Galvanised mild steel tubes nominal bore dia is 40mm

Steel tubes galvanised, isi marked.(nominal bore 40 mm, medium class.)

Steel tubes galvanised isi (nominal bore size 25 mm. class-medium).

Duly isi marked galvanised mild steel tubes electrical resistances welded nominal bore 50 mm.

1 inch nominal bore galvanized iron pipe, c-class, 4 mm thickness, 6 meters long as per is 1239,2 inch nominal bore galvanized iron pipe, c-class, 4.5 mm thickness, 6 meters long as per is 1239

15 mm galv. steel tubes medium grade is: 1239 part-i/2004 both ends screwed one end with socket and other end with plastic thread protector , randum length of 4 to 7 m continuously welded electric resistant weld(erw), high frequency induction welded(hfiw), hot finished welded (hfw) light coated isi mark and socket also to be isi marked confirming to is: 1239 (part-ii)/2011.

Pipe set complete for blc wagon drawing no. :- contr-9405-s/14, alt-14, item no-1 to 23 spec. no:- 04-abr-02 (rev. 01 of nov. 2017) material:- 1. for 32 mm bore pipes :- seamless to is: 1239 (part-1) heavy grade or astm a-106 gr. a 2. for 20 mm bore pipes :- stainless steel to astm-a 312 schedule 40 s gr. tp 304 (erw) (material as per rdso letter no. mw/apb dt. 02-08-2019 with annex. a).

Pipe 32 n.b. with flanges & sockets (welded assembly) for freight stock to rdso s drg. no. wd-80007-s-11, alt-12, item no. 2, 12 & 13. flanges and socket to rdso drg. no. wd-83062-s-07, alt.6, items 2 & 3. other technical requirements confirming to specification no. 04-abr-2019. material specification of pipes as under, pipes 32 nb:-seamless to is: 1239 (part-i):2004 with amendment 1 to 6, heavy grade or astm a-106 gr.a. socket & flange:-is: 2062-2011, amendment 1 of nov.2012, gr. e 250 a for