From 1968 to 1983 he was first secretary of the IG - Metall Headquarter Neckarsulm .
Klaus Zwickel ( born 1939 in Heilbronn ) , German unions functionary and former Chairman of IG Metall .
From 1968 to 1983 Klaus Zwickel was first Klaus Zwickel of the IG - Metall Headquarter Neckarsulm .
Klaus Zwickel ( born 1939 in Heilbronn ) , German unions functionary and former Chairman of IG Metall .