platinum
Platinum
A shiny, silvery-white metal as resistant to corrosion as gold. Platinum is used extensively for jewelry. Its main use, however, is in catalytic converters for cars, trucks, and buses. This accounts for about 50% of demand each year.
American cars have had catalytic converters since the mid 1970's.
Cars, utensils, nails, buildings, and jewelry are some examples of things that are commonly made out of metal.
The first year for Catalytic converters was 1975They were first required on all cars in 1975.
Catalytic converters are a device in the exhaust system that helps reduce the toxicity of emmisions put out by cars. They work by heating up the metal structure and burning up any left over gasses from the combustion of the cylinder.
Chromium.The chemical element chromium is used for the chrome plating of metal strips for automobile trim.
It is a federal law that catalytic converters are required on all cars built after 1975
Chrome plating is typically used to make a car bumper shiny. Chrome plating involves applying a thin layer of chromium to the metal surface of the bumper through an electroplating process, which creates a shiny and reflective finish.
the mid 1970s
During the 1950's, many colorful American cars, such as Oldsmobile, had huge fins. They also had shiny metal bumpers and bright lights fitted to them. Some of them looked more like alien spaceships than cars!
Mercedes,bmw,acura