Pre-fabricated homes consisting primarily of metal, wood, and glass and structural parts for all of the above-mentioned goods; stairs, railings, balustrades, and banisters, all made primarily of metal and wood and structural parts for all of the above-mentioned goods

Residential buildings assembled on site from prefabricated non-metal components

Providing training services, namely, training others in the construction of residential buildings assembled on site from pre-fabricated components