This muti-functional auto line-V has some function which can make different kind of duct as follow: 

1)TDF flange duct 

2）TDF flange weld pipe duct 

3)Inner TDF flange duct 

4)Inner TDF flange weld pipe duct 

5)Angle iron flange duct 

6)Angle iron flange weld pipe duct

7)Inner angle iron flange duct 

8)Inner angle iron weld pipe duct 

9)C.S cleat flange duct 

10)C.S cleat weld pipe flange duct 

Anyone who interest, welcome to inquire from us anytime.