Tenders for Supply of Set Of Valve For Electro Valve Assly.Nc-4 Comprising Of 02 Items 42 Nos. As Per Sketch No. Bsl/Elw/Sk No. 9023 Alt-1 Or Latest. 01-Upper Valve Assly.-Clw.Drg.No.4Twd.111.118.Sh.No.20 Qty-21 Nos.02-Lower Valve Assly.-Clw.Drg.No.4Twd.111.118.Sh.No.21 Qty-21 Nos. Set Comprising Of Two Items Forty Two Nos. Only Clw Approved Sources To Quote.