Sheet Metal workers fabricate and install fittings and duct work used in contraction or industry for heating, ventilation and air-conditioning systems in residential, commercial and industrial applications. They set-up and operate shears, press brakes, hand brakes, bending rolls, welding machines and other equipment to cut, form and attach metal together for applications such as metal roofing and stainless steel work for restaurants, kitchens and hospitals. They prepare ship and field drawings manually and with computer programs. Computer skills are becoming increasingly important to controlling industrial equipment