supply of industrial gas compressed oxygenindustrial gas compressed oxygen,industrial gas compressed oxygen confirming to is : 309/92 (rev.iii) with amendm ent no. 1 in (suppliers returnable cylinder), (a) the total indent quantity is required in the s chedule period of 01 year (approximate). (b) approx. sixteen cylinders of oxygen gas (approxi mately 120 cum) shall be required every fortnight and empty cylinder will be returned bac k while collecting fresh stock. (c) firm to quote delivery schedule as per above requirement (d) collection of filled cylinders and delivery of empty cylinder at firms premi ses will be done by railway. ( e ) other with outstation collection will not be considered. [ warranty period: 30 months after the date of delivery ] ] sse(safety/tool room) els aq, maharashtra 1000.00 cum