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Harmonized System
Section XVI > Chapter 85 > Heading 8546
Electrical insulators of any material.
Section XVI > Chapter 85 > Heading 8547
Insulating fittings for electrical machines, appliances or equipment, being fittings wholly of insulating material apart from any minor components of metal (for example, threaded sockets) incorporated during moulding solely for purposes of assembly, other than insulators of heading 85.46; electrical conduit tubing and joints therefor, of base metal lined with insulating material.
Section XVI > Chapter 85 > Heading 8547 > 8547.10
Insulating fittings of ceramics
Section XVI > Chapter 85 > Heading 8547 > 8547.20
Insulating fittings of plastics
Section XVI > Chapter 85 > Heading 8548
Electrical parts of machinery or apparatus, not specified or included elsewhere in this Chapter.