00525nam a22001577a 4500003000600000005001700006008004100023020000800064040001700072082002900089110003200118245012500150260005000275300001600325650002600341NITIL20210317151250.0210211b        ii ||||| |||| 00| 0 eng d  cRs.  aNITILcNITIL  223rd ed.a547.412bN176P  aNandini Consultancy Center   aPre feasibility report for olefin (ethylene and  propylene ) bproject India from methanol cNandini Consultancy Center   aNew DelhibNandini Consultancy Centre  c2020  a132p. 23cm.  aHYDROCARBON- ALKENE