"विद्युतरोधी": अवतरणों में अंतर
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पंक्ति 12:
== बाहरी कड़ियाँ ==
* [https://electricalhindime.blogspot.com/2020/10/insulator-in-hindi .html '''''insulator क्या है और कितने प्रकार का होता है''''']
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* [https://web.archive.org/web/20090819133055/http://www.nia.org/ National Insulator Association - US site]
* [https://web.archive.org/web/20081030071522/http://www.teleramics.com/ Teleramics - specialises in UK telegraph insulators with a railway bias]
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