00391nam a2200133Ia 4500100001600000942000700016654001400023245003900037260003500076082001200111546001200123999001700135952010500152  aKhurmi/R.S   cBK  aMaterials  aText  book of Mechnical technology  bS.Chand & Co.aNew Delhic1991  a621.412  aENGLISH  c18420d18420  001040708CRCaCRCEbCRCEd2023-03-17g70.00l0o621.412 p5177r2023-03-17v70.00w2023-03-17yBK