Tender For corrigendum : tender for supply of 3 way ball valve d d - valve 3 way ba 100 300 class flan cf8 3 , valve 3 way ba 150 300 class flan cf8 , valve 3 way ba 80 150 flan wcb 3 way ba , valve 3 way ba size 300 class flan wcb , valve 3 way ba 150 150 class flan wcb