Realizations Back Gas distribution plant Rybnik Realizations Office building TEXBUD Wodzisław Śląski Donaldson production and office building in Skarbimierz Żory DKM Tarnowskie Góry BTB office building in Siemanowice Śląskie MARAZZI showroom in Katowice Staniszów Bioeco office building in Chorzów Katowice Office building Rybnik K1