procurement of chemical dosing valves at various places in tmd-off site at 2x660 mw, sstpp, mppgcl, dongalia , ball valve, flanged 150# class, size=25 mm , moc-ss316 , ball valve socket end 800# class, size=15 mm, moc-ss316 , ball valve, socket end 800# class , size=25 mm, moc-ss316 , ball valvesocket end 800# class, size=40mm, moc-ss316 , gate valve socket end #800 class, size=25mm, moc-ss316 , needle valve moc-ss316, operating pressure-4 bar, gland-ptfe, socket end #800 class, size=15mm , needle valve moc-ss316, operating pressure-4 bar, glant-ptfe, fnpt, size=15 mm , plug valve, flanged 150# class , size=50 mm, moc-ss316 , plug valve , flanged 150# class, size=80mm, moc-ss316 , plug valve , socket end #800 class , size=25mm, moc-ss316