Electrical wiring and cable products are mainly divided into the following categories:

Bare wires and bare conductor products:
Main characteristics: pure metal conductor, without insulation or sheathing.
Common products: steel cores with aluminum conductors, copper and aluminum busbars, wires for electric locomotives, etc.
Main applications: mainly used in suburbs, rural areas, trunk lines, distribution cabinets, etc.

Conventional steel pipes mainly include the following types:
By manufacturing method:
Seamless pipes: the pipe surface has no seams.
Welded pipes: pipes made from steel sheet or strip by twisting and welding.