procurement of spares for kay make twin lobe rotary compressors model 1620 wc (conveying compressor) for ahp of unit 1 to 4 of ph-ii and ph-i, at sgtps mppgcl birsinghpur on single offer basis.-- 1 spares for kay make rotary twin lobe compressor, model 1620wc for conveying compressor 2 pulley side plate 3 gear side plate 4 set of lobe fitted with shaft duly dynamically balanced(01 set=02 nos.) 5 set of bearing housing (01 set = 04 nos.) 6 set ofgears duly hardened and ground ( 1 set=2 nos.) 7 external circlip 8 thrust plate 9 set of piston ring bush ( 1 set=04nos.) 10 set of piston rings (01 set = 16 nos.) 11 check nut (01 set=02 nos.) 12 spacer