bids are invited for procurement of servicing and spare parts of air compressor 1 25 ring l p 250 mm , ring h p 160 mm , suction valve assembly l p , discharge valve assembly l p , suction valve assembly h p , discharge valve assembly h p , copper gasket valve , o ring valve cover , o ring unloader , filter element , oil filter , gasket set , unloader piston , unloader cylinder , o ring inter cooler 172 mm x 6 mm , o ring after cooler , filter element , finger valve lp and hp , gasket set , n.r.v assembly , o ring head , filter element 12.5hp , valve assembly lp , valve assembly hp , gasket set 12.5hp , n.r.v assembly 12.5hp , pilot valve , relief valve , gland packing , valve unloader kit , protection grill for k.g.khoshla make , service charges kg khoshla compresr 2hb2 , service charges compressor 2475 ir 5hp , service charges for compresr 71.t 12.5hp total quantity : 316