Metal casings used to stabilize the wellbore in oil and gas wells; Flanges of metal; Hose hangers of metal; Industrial metal hoses; Metal hose clips for restraining hoses used in oil and gas production; Metal hose clips for restraining hoses used in fracking; Metal hose fittings; Metal fuel oil hoses; Fuel oil hoses of metal; Metal couplings for use with oil and gas production hoses; Metal couplings for use with fracking hoses