Ø100 mm.

Ø38 mm.

Ø32 mm.

Ø60 mm. Beco B355 / Beco B405 / Beco B480.

Ø60 mm. Beco BB365 / Beco BB450 / Beco BB500 / BB565

Ø50 mm. Beco B355 / Beco B405 / Beco B480.

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upper part: Beco BB450 – lower part: Beco B355