This is a demonstration of processing an aluminum pipe into a heat shrinkable tube using a carbon ring heater.
Please check the following site for more information.
Related page:
Heat shrink tube processing of stainless steel pipe 
Heat shrink tube processing for electric wires 
Heat shrink tube processing of reinforcing bars 
The aluminum tube in a glass pipe is heated with a halogen point heater 
Copper pipe and Aluminum pipe brazing 
Shrinkage of heat shrink tube with heat resistance of 200℃ 
The stainless pipe in a glass tube is heated with a halogen point heater 
Aluminum pipe brazing