supply of 1) industrial oxygen gas cylinder and 2) supply of empty dissolved acetylene cylinder , industrial oxygen gas cylinder, indigenous empty brand new high pressure seamless steel gas cylinder f lat type, concave bottom cylinder as per is: 7285 (pt-ii) 2004, complete with neck with valve & with clot cap, valve as per is:3224, painted as specified under gas cylinder rules 2004 & supported with manufacturers test certificate & cer tified and approval from chief controller of explosives, govt. of india. gas specified : oxygen standard : 7285 part-ii 20 04 gas cap 7 cum [ warranty period: 30 months after the date of delivery ] ] , supply of empty dissolved acetylene cylinder, type three piece welded, to is 7312 as per following techn ical requirement (1) water capacity: 41 ltrs ( +3% , - 0% ) ( 2) hydrostatic stretch test pressure : 53 kgf / sq.cm (3) pn eumatic leakage test pressure : 40 kgf / sq.cm (4) maximum working pressure at 15 degree celcious - 16 kgf /sq. cm , (5) gas capacity 07 kgs (6) outer dia : 258 mm ,(7) inner dia : 250 mm (8) wall thickness (nominal : 04 mm (9) length without valve 960 mm ( approx.) porous monolithic calcium silicate (11) porosity 90 to 92 % (12) crushing strength (mi n) : 22 kgf / sq.cm.( 13 ) solvent : acetone ch3coch3, (14) empty weight : 55 kgs. (15) valve confirm to is: 3224, (16) fusible plug as specified under gas cylinder rules 2004 & supported with manufacturers test certificate & certificate a nd approval from chief controller of explosives, govt. of india. [ warranty period: 30 months after the date of deliver y ] ]