1. SHIELDED METAL ARC WELDING (SMAW)

2. GAS METAL ARC WELDING (GMAW), INCLUDING BOTH GAS-SHIELDED AND OPEN ARC WELDING.

3. OXYFUEL WELDING (OFW).

4. SUBMERGED ARC WELDING (SAW).

5. ELECTROSLAG WELDING (ESW).

6. THERMAL SPRAYING.

7. COLD POLYMER COMPOUNDS.

8. HARDPAINT