It's personal preference only since federal standards are the same they are equally safe. Metal is preferable if you have a choice since plastic flexes and paint cracks & metal ones can usually be reapaired vs replacement when you have minor damage.
The plastic cans are just plastic, the metal cans are lined with a coat on teflon or lacquer.
Some fancier pens are made of certain types of metal.
In the early days of photography, most cameras were made of wood, a few from metal. Nowadays cameras are made from many materials, depending on quality - chiefly metal or plastic. The lenses are usually glass.
It is a template or ruler made out of plastic, metal or wood composed of many different curves.
Sony Walkmans are made out of several grades of plastic, some aluminum and pot metal. You will also find some silica on the circuit board.
Cookers are made of metal because it withstands heat a lot better and does not melt like plastic would.
If something was originally made from metal, then it started to be produced in plastic. It could be because of the price for the metal, that it takes less time to make the product in plastic form, or the product performs better in plastic.
It is made out of plastic.
Today the outer bumper shell is made of plastic. The inner bumper is made of steel or alluminum.
Steel on the inside, a plastic cover on the outside.
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They where made out of Metal and plastic the Plastic is called zlonite.
plastic and metal :|
The lenses are made from either glass or plastic. The frames are generally made from plastic, nylon, a metal or metal alloy.
The lenses are made from either glass or plastic. The frames are generally made from plastic, nylon, a metal or metal alloy.
mainly metal and plastic (plastic cover metal inside)
They are made of both metal and plastic