Supply of various HDG steel structures, such as Transverse Beams, Test Station, and other supporting structures for the world's first full scale automatic aircraft washing and de-icing system. Prefabricated in Poland, The Multi-Solution Gate is a revolutionary, sustainable system for washing, de-sanding, de-icing and engine flushing for aircraft. Enclosed to control spillage, it is equipped with a unique recycling system that collects spent fluids.