tender for set of two nos air brake pipe 32 n.b. (f.p.) with socket 32 n.b. & flange 32 n.b. for boxnhl.pipe as per wd - 08008-s-11, item u2013 3, alt.-6, seamless to is 1239 pt. 1 heavy grade or astm a-106gr. a and socket flange as per wd - 08008-s u201311, item -11 & 12, alt.-6 and wd-83062-s-07, alt.-6 .
