short dated tender - supply of filling of compressed oxygen gas etc. , filling of compressed oxygen gas confirming to is:309-2005 (rev, iv) for industrial use in ra lway owned cylinders. full quantity to be supplied in empty cylinders supplied by railway. freight charges t o be borne by firm for empty cylinders ex motibagh workshop, kadbi square, nagpur, sec railway to firm p remises and loaded cylinders to be returned back to same place & material to be supply by firm as and wh en required by consignee (loading and unloading should be in scope of supplier ) [ warranty period: 30 m onths after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]