Explanatory notes
… insulators of any material. 8546.10 ‑ Of glass 8546.20 ‑ Of ceramics 8546.90 ‑ Other Insulators of this heading are used … power networks, electrical traction systems (railway, tramway, trolleybus, etc.), and also for indoor … form of balls, bells, pulleys, etc.) for overhead lines of railways, trolleybuses , cranes, etc., or for aerials. (B) …