French automobile exhibition hall. The project building area is 3300 square meters. The frame of the exhition hall part is truss structure while that of the workshop part is portal steel frame. The wall enclosure is made of 100mm thick PU composite panel and double-faced hollow toughened glass curtain wall. he roof enclosure is made of 100mm thick glass wool composite panel (density is 40kg per cubic meter). Provide customers with a good view and comfortable environment.