The answer is, well, complicated. When pricing a television commercial, you need to weigh the costs of two separate things: (1) the cost of producing the commercial, and (2) the cost of airing it. It has been estimated that the average cost of producing a 30-second national TV commercial is nearly $350,000.
silicosis and emphysema, chemical and heavy metal poisoning, and heart dis-ease are a few of the health hazards facingfoundryworkers. Extremenoise, heat, dust, andfumes are facts of foundry work. The Ameri-can Foundrymen's Society reports that foundry machinery produces noise Moltenmetalispoureddirectly fromladle
7.1 Sheet and plate metalwork (introduction) Sheet metalwork is the manipulation of sheet metal of 3.5 mm in thickness, or less, using mainly hand tools or portable power tools in order to manufacture a range of. diverse products. Plate metalwork is the manipulation of metal plate over 3.5 mm in. thickness using mainly power tools.