Flat

Vertical

Horizontal

Overhead

diameter of its core wire

diameter (overall) of electrode

thickness of flux coating

length of electrode

to increase welding current

to stabilize the arc

to prevent rusting

to control arc temperature

350 mm and 250 mm

350 mm and 450 mm

400 mm and 500 mm

18" and 10"

Red for oxygen and blue for acetylene

Black for oxygen and red for acetylene

Black for oxygen and maroon for acetylene

Red for oxygen and maroon for acetylene