Merry Christmas 2020!

Dear customers and business partners,

a year like we have never experienced previously is coming to its end. It posed never-before-seen challenges, tampered with our plans and put restrictions on everyday life.

Nevertheless: We look to the year 2021 with optimism and confidence and we wish everyone of you good health, good luck and the return of normalcy, as much as that is possible.

We would like to express our deep gratitude for your trust and loyalty and look forward to working with you again in 2021.

Best wishes,

Roselies Gersdorf
with Angela Tennert and the Haase team



The very greatest things — great thoughts, discoveries, inventions — have usually been nurtured in hardship, often pondered over in sorrow, and at length established with difficulty.
(Samuel Smiles)

Please be aware that we are closed from 23.12.2020 to 03.01.2021. You can reach us again from 04.01.2021. If you need to contact us urgently, please send an email to