Semiconductor processors are the production workers who manufacture semiconductors in disks of varying sizes, generally eight to twelve inches wide.

Coating, painting, and spraying machine setters, operators, and tenders control the machinery that applies these paints and coatings to a wide range of manufactured products.

Photographic processing machine operators operate various machines, such as mounting presses and motion picture film printing, photographic printing, and film developing machines. Photographic process workers perform more delicate tasks, such as retouching photographic negatives, prints and images to emphasize or correct specific features.

Medical appliance technicians construct, fit, maintain, and repair braces, artificial limbs, joints, arch supports, and other surgical and medical appliances. They read prescriptions or detailed information from orthotists, podiatrists, or prosthetists.

Inspectors, testers, sorters, samplers, and weighers ensure that your food will not make you sick, that your car will run properly, and that your pants will not split the first time you wear them.

Jewelers and precious stone and metal workers use a variety of common and specialized handtools and equipment to design and manufacture new pieces of jewelry; cut, set, and polish gem stones; repair or adjust rings, necklaces, bracelets, earrings, and other jewelry; and appraise jewelry, precious metals, and gems.

Water treatment plant and system operators treat water so that it is safe to drink. Liquid waste treatment plant and system operators, also known as wastewater treatment plant and system operators, remove harmful pollutants from domestic and industrial liquid waste so that it is safe to return to the environment.

Stationary engineers and boiler operators operate and maintain these systems, which include boilers, air-conditioning and refrigeration equipment, diesel engines, turbines, generators, pumps, condensers, and compressors.

Woodworkers are found in industries that produce wood, such as sawmills and plywood mills; in industries that use wood to produce furniture, kitchen cabinets, musical instruments, and other fabricated wood products; and in small shops that make architectural woodwork, furniture, and many other specialty items.

Power plant operators control the machinery that generates electricity. Power plant distributors and dispatchers control the flow of electricity from the power plant, over a network of transmission lines, to industrial plants and substations, and, finally, over distribution lines to residential users.

Textile, apparel, and furnishings workers produce fibers, cloth, and upholstery, and fashion them into a wide range of products that we use in our daily lives.

Printing machine operators, also known as press operators, prepare, operate, and maintain the printing presses in a pressroom. Duties of printing machine operators vary according to the type of press they operate—offset lithography, gravure, flexography, screen printing, letterpress, and digital.

In small print shops, job printers are usually responsible for all three stages. They check proofs for errors and print clarity and correct mistakes, print the job, and attach each copy’s pages together.

Welders use many types of welding equipment set up in a variety of positions, such as flat, vertical, horizontal, and overhead.

Bindery workers set up, operate, and maintain the machines that perform these various tasks.