00554nam a2200169Ia 4500008004100000041000800041082001400049100003000063245008500093250000800178260004700186300000600233650002700239942000700266952009600273999001500369230711s9999||||xx |||||||||||||| ||und||  aENG  a666bBU-I  aBureau of Indian Standard 0aIS : 6441 Pt IVbMethod of test for auto claved cellular concrete products Pt VI  a1st  c1973aNew DelhibBureau of Indian Standard  a7  aMechanical Engineering  cBK  001040708RaMCLbMCLd0000-00-00l0o666 BU-Ip7724r2023-08-17 14:41:28w2023-08-17yBK  c7970d7970