English translation: a German company -- VTA Engineering & Umwelttechnik
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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:
a German company -- VTA Engineering & Umwelttechnik
Maybe it is the name of a company (I found some on Altavista dealing with water treatments). Besides that, the above is the only other explanation I encountered which could fit your context. Good luck!
Oh, yes, the English equivalent could be The Association of Technical Workers or something similar.