3 segments

4 segments

6 segments

8 segments

Single -V

Single bevel

Square edge with root gap

Square edge without root gap

4 equal divisions

6 equal divisions

9 equal divisions

12 equal divisions

Slag

Spatters

Stub end

Weld metal

Straight nozzle with single preheating hole

Bent nozzle with sectorial preheating holes

Fully bent nozzle with circular preheating holes

Slightly bent nozzle with circular preheating six holes