There are 70 firms entered under this category from China, Germany, Switzerland and Czech Republic. The enterprises are from Balgheim, Beijing, Berlin, Beromünster, Düsseldorf, Emmingen-Liptingen, Freiburg im Breisgau, Garching, Gauting, Guangdong, Hamburg, Hasloh, Höchstadt an der Aisch, Jiangxi, Knittlingen, Markkleeberg, Meschede, München, Nümbrecht, Pfaffenhofen, Pinneberg, Praha 1, Praha 8, Quickborn, Rietheim-Weilheim, Schwenningen, Sexau, Tettnang, Tuttlingen, Tuttlingen-Möhringen, Voerde (Niederrhein), Wetzlar, Wiesbaden, Willich, Würzburg, Zhejiang and Zirndorf.