supply of supply of acetylene gas & oxygen gas.supply of acetylene gas & oxygen gas.,supply of dissolved acetylene gas is 308 -1962 in firms returnable cylinders. conditions (1) material being required is piecemeal quantities as and when gas cutting works are done. (2) delivery perio d may be fixed for 6 months with the condition that material should be delivered is piecemeal as and when required by consignee in firms returnable cylinder. (3) free delivery of acetylene gas full/load cylinders and take back the empty acetylene gas cylinders by the firm itself including their own transportation ,labours ,c ylinders ,etc ] , item code: 769000021207 item type : supply item description: supply of compressed oxyge n gas is 309 -1965 in firms returnable cylinders. conditions: (1) material being required in piecemeal quanti ties as and when gas cutting works are done. (2) delivery period may be fixed for 6 months with the conditi on that material should be delivered is piecemeal as and when required by consignee in firms returnable cy linder. (3) free delivery of acetylene gas full/load cylinders and take back the empty acetylene gas cylinder s by the firm itself including their own transportation ,labours ,cylinders ,etc. ] => limited