The WiDaF test is administered and organized by the Duty-free-German Chamber of Commerce and Industry, an organization primarily targeting né-German-speaking working people from all over the world who wish to work Sopra a German company. The exam enjoys a certain reputation and is considered the benchmark for professional German tests. https://getdocumentschina.co/zai_xian_gou_mai_zheng_shu_/widaf