perties
 

1. It makes possible to bend flexibly the pipe(square pipe, flat bar, I-beam, H-beam, Channel, sash, spiral pipe etc.) with low-strain and to get the accuracy angle by bending.

2. It makes possible to reduce the decarbonization and the oxidation because of the flash heating.

3. It is free from impurities and faults to the inside surface of pipe.

4. It makes possible to bend tridemensionally the pipe without welding point.