High Voltage Inc.
United States
EC Insulator Jiangxi Co., Ltd.
China
Polipar Energy System
Turkiye
Klöckner Desma Elastomertechnik GmbH
Germany
Sediver
France
Protektel sp. z o.o.
Poland
LAPP Insulators GmbH
Tridelta Meidensha
Dalian Insulator Group T&D Co., Ltd
TID Technology Development Co. Ltd.
Polycast
Canada
Hitachi Energy Transformer Components and Service
Switzerland
Zapel S.A.
Insulators & Electricals Company (Prop. Hindusthan Urban Infrastructure Ltd.)
India
K-Line Insulators Ltd.
Dalian CTC Insulator Company Limited
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