Sven Hilbrands
Tel. Büro: 04921 812-30
Tel. Mobil: 0170-29 339 66
E-Mail: hilbrands@mibau-stema.com

Frank Janssen
Tel. Büro: 04921 812-20
Tel. Mobil: 0170-29 339 95
E-Mail: janssen@mibau-stema.com

Irene Grib-Klein
Tel. Büro: 04921 812-31
Tel. Mobil: 0170-29339-08
E-Mail: grib-klein@mibau-stema.com