Oswald Wilhelm
Oswald Wilhelm
President, Federal Association of the Chimney Sweep Crafts - Central Guild Association (ZIV)Oswald Wilhelm is currently serving in the capacity of President of the ZIV (Federal Association of the Chimney Sweep Trade - Central Guild Association).
News mentions
On the basis of the surveys by the chimney sweep trade, ZIV (Federal Association of the Chimney Sweep Trade - Central Guild Association) and BDH (Federation of German Heating Industry) presented the i...
HVAC Experts
