Tender For corrigendum : supply of pipe line and other items - pipe line ss 304 id 8 inch thickness 5mm , pipe line ss 304 id 5 inch thickness 5mm , pipe line ss 304 id 4 inch thickness 3mm , pipe line ss 304 id 2 inch thickness 3mm , ss ball value 50 mm , gyro sieve spring size height 6 inch id 1.5 inch , c channel imsc 100 x 50 x 5 mm , c channel imsc 75 x 50 x 5 mm