APF77_Apr21_FireDos_Frank_Preiss

Frank Preiss is Managing Director of FireDos GmbH. FireDos are experts in proportioners and monitors for firefighting, focusing on customer service and their inhouse-developed leading technology.

Frank Preiss is Managing Director of FireDos GmbH. FireDos are experts in proportioners and monitors for firefighting, focusing on customer service and their inhouse-developed leading technology.

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