Manufacturing process

Hot-Expanding Pipe Process Chart

                                                               

Cold Drawing-Rolling Process Chart

                                                                 

Automatic Volume Expansion


Box Type Heating Furnace

 


Heat Treatment 

 


Rolling Bottom Type Heating Furnace

 


Mandril for Hot Expanding 

 


Polishing Outside Surface

 


Hot Expanding Machine

 


Polishing Inside Surface

 


Flating End Machine