Bam Tek collection has the ability to implement a 12-meter long fabric roof without columns. It can be said that in Bamtek collection, due to the availability of high-quality profiles in rails with large sections, it is the only company that implements the 12-meter projection of the fabric-driven roof, and also by having modern and specialized equipment and machines in the field of standard roof production. Mobile, due to the large size of the equipment, it is necessary to provide suitable space, the roof complex of a single factory with an area of 6000 square meters is able to use this technology. and also the maximum width of the ceilings is 4 meters, which can be in line with the rails or less.