PERGANDE was able to secure the largest order tendered in the chemical industry in 2005; this order had a volume of 24 single filters (dust filter). The equipment was supplied between January 16 and February 28, 2006. Some of these filter had dimensions of up to 5,500 mm in diameter and 17,000 mm in length. Presently, the largest low bed trucks in Germany are transporting these filters to the site of installation. This equipment was made of pressure and shock resistant material (alloy no. 1.4571) and ground and polished on the inside. Based on high customer satisfaction we will be commissioned with the construction of other major installations.