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because plastic melts on heating and metal doesnot melt on heating.metals are good conductors of heat.

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How is plastic mined?

Plastic is not mined like natural resources such as metals or minerals. Instead, plastic is typically produced from petroleum-based chemicals through a refining process. These chemicals are then molded into various plastic products through manufacturing processes.


Why are switches made of plastic and not metal?

Switches are typically made of plastic because plastic is a good insulator, which helps to prevent electrical shocks. Plastic is also lightweight, durable, and cost-effective compared to metal. Additionally, plastic can be molded into various shapes and colors easily to suit different design preferences.


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House phones were originally made using a mix of materials including plastic, metal, and wires. The body of the phone was typically plastic for durability and ease of manufacture, while the internal components such as the circuitry and wiring were made of metals like copper for conductivity.


Where are Hotpoint gas cookers made?

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Why duralumin is not used for composite materials?

Duralumin is an aluminum alloy. Composite materials are made of plastic resins and reinforcing fibers (e.g. fiberglass, carbon fiber), not metals.