The nuclear series that won the German Red Dot Design Award in 2019 is the patented hinge technology of Tujia, which allows the two sides of the box to seamlessly and tightly bite, double TSA explosion-proof customs locks, and the safety factor is doubled, allowing users to be fearless of consignment and more hardcore travel. In 2020, Tujia will cooperate with Germany's Kostron Company (formerly Bayer Group of Germany) to use high-end lightweight material "carbon fiber" as the front and rear door panels of the nuclear series, which are resistant to high temperature, corrosion, deformation and high price, and bring better protection to the luggage.