1) GATE VALVE; Audco, L&T, ASA Class 150, Cast Carbon Steel to ASTM A216 Gr, WCB Gate Valve, with 13% Cr. S.S. Internals (S.S. 410) IBR Approved. Gear Operated 200 and above Sizes IN MM: 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600