000 00265nam a2200073 4500
080 _a
_b
245 _aIS: 731 - 1963 (incorporating amendment nos.1,2,3 & 4); Specification for Porcelain Insulators for overhead Power Lines.
700 _aIndian Standards Institution
260 _aNew Delhi
_bBIS
_c1968
300 _a29p
999 _c25496
_d25496