If someone in Switz­er­land wants to have an extra­or­di­na­ry stair­ca­se, he will ine­vi­ta­b­ly come across the crea­ti­ve minds of Treppenbau.ch AG. Their stair­ca­se con­s­truc­tions start at a point, whe­re others lea­ve off becau­se it gets too com­pli­ca­ted. „The inno­va­ti­ve gene of our employees when deal­ing with CNC-tech­no­lo­gy distin­gu­is­hes us from our competitors.“