OK Messen has added a second hall to accommodate all the companies that have agreed to show at its new Opti Zurich fair in Switzerland, which will be held for the first time next Sept. 9-10. Airess, Allergan, Bausch & Lomb, Bollé, Cébé, Ciba Vision, eschenbach, Essilor, Neostyle, Oakley, Rodenstock, ...
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