Electrical insulators, except of glass or ceramics; insulating fittings for electrical machines or equipment, except of ceramics or plastics; electrical conduit tubing and joints therefor, of base metal lined with insulating material

CPC v2.1 class (Electrical insulators, except of glass or ceramics; insulating fittings for electrical machines or equipment, except of ceramics or plastics; electrical conduit tubing and joints therefor, of base metal lined with insulating material) within 'Other electrical equipment and parts thereof'. UN Central Product Classification grouping of related products at this level.