Tender For corrigendum : tender for supply of b7h1y66221 gate globe check valve cpcl chennai : : - gate vlv mop as 12 inch cl300bw with int st , piston lift chk vlv cs 1 inch cl 800 sw ends , gate valve with gland seal 12 inch 150 cl bw , gt vlv 6 inch 150 cl bw cs gland seal , gav cs nb 2 inch pr cl ansi 800 sw , glv as a182f11 nb 1 inch pr cl ansi 1500 sw