½ ’ ’ Nb Npt Screwed End Thermodynamic Stream Trap Forhigh Pressure Steam Service As Per Annexure- , ¾ ” Nb Nptscrewed End Thermodynamic Stream Trap For Highpressure Steam Service As Per Annexure- A , ½ ” Nb Nptscrewed End Thermodynamic Stream Trap For Medium &Low Pressure Steam Service - Annexure B Quantity: 35