- Chengrui
Manufactures a wide range of insulation materials such as insulation paper, composite insulation materials, and fiberglass sleeving.
https://www.chrcn.com/
- Dongfang Electroceramic
Manufacturer of high‑voltage glass insulators, porcelain & composite insulators and transmission-line hardware fittings.
https://www.eastceramic.com
- Fenhar
An experienced supplier of engineering plastics, thermoplastics and high‑strength insulation composites.
https://www.fenharxz.com
- Nooa
A professional manufacturer of glass electrical insulators, porcelain insulators and composite insulators for power transmission.
https://www.nooaelectric.com
- Nova
Producing high-quality epoxy laminates, carbon‑fiber sheets, insulation materials, rods & tubes and CNC‑machined composite parts.
https://www.nova-insulation.com
- Rongtai
Focusing on high-performance insulation materials, especially mica-based and other advanced insulation composites.
https://www.jxrt.com/en
- Xujue Electrical
Focuses on manufacturing insulation sheets, and other insulation materials for motors, transformers and electrical systems.
https://www.ztaero.com/
- YAAN Electrical
Offering varieties of electrical insulation materials: flexible laminates, insulation films, varnishes and transformer.
https://www.yaanelectrical.com
- ZTELEC
Covers insulation materials, complete power transmission‑distribution equipment, enameled wire, and transformers.
https://www.hnztelec.com/
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