| 1. Hindustan Chemicals
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| Manufacturers of insulators upto 66kv range for pin, post, disc, transformer bushings, lightning arrestor porcelain, shackle, spool and strain insulators. |
| http://www.indianinsulators.com |
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| 2. Rajeev Industries
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| Manufacturers of porcelain insulators, cable boxes and transformer bushings. |
| http://www.ceramicinsulator.com |
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