The copper connection tube for wire connection achieves stable circuit connection through thin-walled design, which can effectively reduce poor contact problems, enhance circuit safety and stability, and is suitable for new installation or maintenance scenarios. The purple copper tubes in the air conditioning refrigeration system are responsible for the transmission of refrigerants, the discharge of condensate water, and the connection of heat exchange components (such as evaporators and condensers) in air conditioners. Their excellent thermal conductivity and corrosion resistance ensure the efficient operation of the system, and they can also withstand high-temperature media (200℃) and frost heave shock.