We had develop the fully automatic bending and drilling machine .
First punch the gap, drilling the holes, then bending the pipes.
So the front rail of the household ladders had all finished in one time .
The pipes can be ranged from 40mm to 50mm.
The working time is 8s per pipe . only need one worker .
So this is really highly automatic advanced bending and drilling machine .
The video for that machine in Youtube is: https://youtu.be/IcCD7mUnA3I