bids are invited for boqgem058 gate valve 10 inch class 150 cast steel body stainless steel stem along with flanged connection and bolted bonnet astm a 6 wcb , swing check valve 3 inch class 150 cast steel flanged ends as per astm a6 gr wcb bolted cover , swing check valve 4 inch class 150 cast steel flanged ends as per astm a6 gr wcb bolted cover , gate valve 2 inch class 150 rf flange wcb as per astm a6 body bonnet astm a 6 gr wcb wedge astm a 6 gr wcb stem ss 410 design ansi or astm , gate valve 3 inch class 150 rf flange wcb as per astm a216 body bonnet astm a 216 gr wcb wedge astm a 216 gr wcb stem ss 410 design ansi or astm , gate valve 4 inch class 150 rf flange wcb as per astm a216 body bonnet astm a 216 gr wcb wedge astm a 216 gr wcb stem ss 410 design ansi or astm , gate valve 6 inch class 150 rf flange wcb as per astm a216 body bonnet astm a 216 gr wcb wedge astm a 216 gr wcb stem ss 410 design ansi or astm total quantity : 21