Tender For supply of hot finish seamless tube (hfs) with nominal bore 20mm , length 5 to 7 metres, heavy ,plain end black and painted with two coats of redoxidezincchromeprimer to is - 2074/ 2023 after grit blasting or mechanical brushing for air brake stock to is.1239/2004, ra 2019 pt-1, table-5 (heavy), amendment no. 6 of june 2021 [ warranty period: 30 months after the date of delivery ][quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max8 lacs ] ]