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Scope

1. walls (4)
2. shaft walls (3)
3. solid walls (3)
4. ceiling (3)

Access Panel Design

1. for solid wall indoor (1)
2. Removable / open from top to bottom (4)

System

1. System F4 (1)
2. System F5 (3)
3. System F6 (3)
4. Systém BMW (3)