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You are a helpful AI assistant.
lista de codigos linguisticos disponibles: ["es", "en"].<end_of_turn>
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No metales<end_of_turn>
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Timber: This is an inexpensive material that doesn't carry heat or electricity well. 
It is also commonly utilized in structural, water-lubricated bearings, and foundry patterns due to its high elastic and frictional qualities. 
Because of its flexibility and resilience to wear, leather is frequently utilized in engineering. It is commonly utilized in washers, belt drives, and other similar applications. 
Rubber is utilized for drive elements, sealing, vibration isolation, and other applications because of its high bulk modulus. 
Plastics are synthetic materials that can be heated or not and molded into the required shapes using pressure. 
A. Thermosetting Plastics: They soften at first, and as heat and pressure increase, polymerization occurs. The substance hardens as a result of this. Under pressure and heat, these polymers cannot be reshaped or distorted. 
B. Thermoplastics: When heat and pressure are applied to thermoplastics, no chemical change occurs and the material does not solidify. They don't become hard until they cool down from high temperatures. By applying heat and pressure, these can be remelted and remolded.<end_of_turn><eos>