bids are invited for procurement of spares of air compressor 1 18 cylinder h p 140 dia m c 6cd3uc ug , h p con rod small encl bearing , obs piston rings dia 197 , obs piston rings dia 140 , bearing con rod upper , bearing con rod lower , safety valve assy 3 by 4 inch bsp 18 ksc , valve inlet assly , valve discharge assly , hp piston 108 mm , piston and gp 197 , strainer element 6 cd , unloader sub assembly , lp exhaust cylinder dia 197 , cylinder dia 108 m c 6cd4uc , valve assembly safety 1 by 2 inch npt expr , valve plug delivery , valve plug suction , copper washer suction unloader , diaphragm assembly plate breather , kit gasket and sealing par 4uc , kit gasket and sealing par 3cd , piston ring kit dia 108 , screw compressor total quantity : 907