2343 Manufacture of ceramic insulators and insulating fittings

23.43.1 Electrical insulators of ceramics; insulating fittings, for electrical machines, appliances or equipment, of ceramics
23.43.10 Electrical insulators of ceramics; insulating fittings, for electrical machines, appliances or equipment, of ceramics
23.43.9 Sub-contracted operations as part of manufacturing of ceramic insulators and insulating fittings
23.43.99 Sub-contracted operations as part of manufacturing of ceramic insulators and insulating fittings