Profile: Wellco Industries Inc. offers electricity cable protection systems & performance profiles. Underground conduit is designed to be installed underground between buildings, structures, or devices, to allow installation of power & communication cables. An assembly of these conduits, often called a duct bank, may either be directly buried in earth, or encased in concrete (sometimes with reinforcing rebar to aid against shear). Our cable tray & cable ladder system is made of fiberglass with polyester resin or vinyl ester resin. Cable tray & cable ladder system are used to support insulated electric cables used for power distribution & communication. Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in commercial & industrial constructions. They are especially useful in situations where changes to a wiring system are anticipated, since new cables can be installed by laying them in the tray, instead of pulling them through a pipe.