Step 1 BURNER (Pilot Flame)
Step 2 BURNER (Big Flame)
Step 3 BURNER + LANCING (Foaming)
Step 4 LANCING (Decarburization) + Pilot Flame
Advantages:
- Longer distance to bath
- Deeper bath penetration
- Less splash, more bubbles
- Less maintenance and operating costs
- Improved yield and productivity

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