Question

The ______ flame is used for cutting and welding of metals.​

Answer 1

Explanation:

oxy-acetylene flame

hopefully it will help you

Answer 2

Answer:

Welding.

Explanation:

Welding fumes are a combination of metallic oxides, silicates and also fluorides. the formation of these films are a result of a metal being exposed to heat above its boiling point and a condensation of its vapours into good fine particles. such films are made up of particles from the material that one is welding and also particles from electrode