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| 041 | _aEnglish | ||
| 082 | _a621.8 | ||
| 100 | _aGOVT OF INDIA | ||
| 245 | _aTECHNICAL DRAWINGS - ABB - REVIATIONS AND SYMBOLS FOR USE IN TECHNICAL DRAWINGS | ||
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_bBUREAU OF INDIAN STANDARDS _aNEW DELHI _c1993 |
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_a2 _bNA |
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