000 00387nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aIndian Standards Institution
245 _aSpecification for moderate heat duty fireclay refractories group `A'
260 _aNew Delhi
_c1953
300 _a0.666666667
440 _aIS-6; Indian Standards Instit
901 _a39943
942 _cB
_2udc
999 _c7554
_d7554