Dukan is the membrane product trademark of the German company Verseidag-Indutex GmbH, which is located in Krefeld, a city in northwestern Germany.

Dukan Membrane is currently the only company in the world that produces both PVC membrane materials and PTFE membrane materials. The largest width of Dukan PVC membrane materials can reach 5 meters, and the largest width of PTFE membrane materials The width reaches 4.7 meters, which is the widest membrane material in the world.

The case of Duquesne membrane

In 1993, the Stuttgart Stadium covered an area of ??34,000 square meters; in 1994, the Halle Tennis Center in Germany covered an area of ??10,000 square meters; in 1995, the Austrian airport parking lot covered an area of ??16,000 square meters; in 1996, the Ankara Stadium in Turkey covered an area of ??16,000 square meters. ㎡; Cologne Music Center in Germany 25,000 ㎡.

In 1997, the Hamburg Tennis Center in Germany covered an area of ??10,000 square meters; in 1998, the Toulouse Stadium in France covered an area of ??15,000 square meters; in 1999, the Hamburg Stadium in Germany covered an area of ??50,000 square meters; in 2000, the CARGOLIFTER workshop covered an area of ??110,000 square meters; in 2001, the Dolphin Hotel in Orlando, the United States, covered an area of ??15,000 square meters, etc.