Supply Of 4\" Screwed End Ball Valve For Modification In Btpn Wagon As Per Rdso Drg. No. Wd-btpn-3.1, Alt-2 (rev.-2) (may-2025), Item No. 2. Make/brand : Audco Valves, Arieckal Industri Es, Kirloskar Brothers, Fluidchem Valves, Sant Valves & Zoloto Valves Only. [ Warranty Peri Od: 30 Months After The Date Of Delivery ]