Procurement of Set of three following items for GD mak [ Set of three following items for GD make Air compressor model WLNA9BB for HHP Diesel Locomotives. Note:- The firm has to issue COC ( or ) WTC along with supply. ( 1 ) Gaske ring LP to GD Part No. 25L7- Qty. 02 Nos. ( 2 ) Gasket ring for Set Screw to GD Pt. No. 25F13- Qty. 02 Nos. ( 3 ) Discharge valve cover Gasket LP to GD Pt. No. 225WLN715- Qty. 02 Nos. ]