Downhole oil field machinery and parts thereof, for oil, gas, water, or injection well, namely, liners, liner hangers, casing, packers, bridge plugs, sand screens, and actuation devices therefore, namely hydraulic and mechanical expanders, namely swedges, pistons, and cones; and power operated actuation devices, namely, hydraulic and mechanical expanders, namely swedges, pistons, and cones

insulating concrete forms; namely, insulated non-metal casting forms for concrete