Power and Communication Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Metal Tank (Heavy Gauge) Manufacturing, Heating Equipment (except Warm Air Furnaces) Manufacturing, Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use

Power and Communication Line and Related Structures Construction, Perishable Prepared Food Manufacturing, Petroleum Refineries, Household Cooking Appliance Manufacturing, Household Refrigerator and Home Freezer Manufacturing

Hunting and Trapping, Soil Preparation, Planting, and Cultivating, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders

Other Major Household Appliance Manufacturing, Power, Distribution, and Specialty Transformer Manufacturing, Storage Battery Manufacturing