Firefighting equipment needs to have high durability, reliability, and resistance to high temperatures. Firefighting equipment typically must be used for long periods in harsh environments, so it needs to have corrosion-resistant, wear-resistant, and waterproof characteristics. At the same time, in emergency situations, the equipment needs to be activated immediately and operate effectively, so its reliability is extremely important.

Firefighting communication cables, handset cords, or QQ lines usually use rubber, silicone, or other insulating materials. Rubber is also known as an elastomer. The performance of highly elastic materials is that they have large elastic deformation under external forces, up to 1000%, and quickly recover after the external force is removed, so they have high elasticity. They maintain stable performance in high-temperature environments between 150°C and 200°C.

As for the handset cords of firefighting communication equipment, they indeed need to undergo a 'handset cord endurance test'. This test is to ensure that the handset cord can maintain its function even under frequent use and high-temperature environments, without breaking or degrading in performance. After undergoing the handset cord endurance test, rubber materials can further improve quality and safety, ensuring that firefighters can reliably communicate in emergency situations.

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