These tubes are used to carry automotive
engine coolant between the engine and radiator

References of AL pipe extrusion(~2020)
| Material A | A10XX series | A30XX series | A60XX series |
|---|
Min. Out Diameter | 10mm | 6mm | 7mm |
|---|
Max. Out Diameter | 54mm | 70mm | 80mm |
|---|
| Length | ~1900mm | ~1900mm | ~1900mm |
|---|
| Thickness | 0.8~2.0mm | 0.4~2.0mm | 0.8~6.5mm |
|---|
| Major Applied | HVAC Steering system | HVAC Cooling module | HVAC Steering, Thermal system |
|---|
Commonly used material | A1070 | A3103 | A6061 A6063 A6020 |
|---|