W.S.Industries [India] Ltd offers Puncture Proof Solid Core Insulators. W.S.Industries [India] Ltd is an ISO 9001 accredited company. The Puncture Proof Solid Core Insulators are used for substations and apparatus require a high degree of safety and service reliability. These insulators may be subjected to high degree of static and dynamic loading, severe climatic conditions and very heavy levels of pollution. Insulators comply with relevant IEC / ANSI standards.