IS: 1885 (Part 54) - 1993/IEC 50 (471) - 1984; Electrotechnical vocabulary Part 54 insulators
IS: 1885 (Part 54) - 1993/IEC 50 (471) - 1984; Electrotechnical vocabulary Part 54 insulators
- New Delhi BIS 1993
- 5p
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