What is the type of the connecting pipe of the Mijia Air Conditioner Pro Eco 5-Star 1.5 HP Inverter?

The drainage hose of the air conditioner measures 2m in length and has a diameter of 18mm. It is constructed from a material blend of LDPE, EVA, anti-aging agent, and anti-oxidant.
The copper connecting pipes of the air conditioner come in various diameters:
1. A 6mm diameter pipe with an outer diameter of 6.35mm and a pipe thickness of either 0.6mm or 0.7mm;
2. A 9mm diameter pipe with an outer diameter of 9.52mm and a pipe thickness of 0.7mm.
The connecting pipe between the indoor and outdoor units of the air conditioner is made of seamless copper pipe for phosphorus deoxidation. The material is
labeled as TP2M.
For your reference, here are more details about the connecting pipe:
1. The seamless copper pipe for phosphorus deoxidation has stronger pressure resistance and higher durability, and is particularly suitable for high-pressure environments;
2. The seamless copper pipe for phosphorus deoxidation can effectively prevent pipelines from rusting and corrosion, and improve the stability of the system.