Aluprof designs and extrudes aluminium fire systems in Poland, its MB-78EI, MB-86EI, MB-60E EI, MB-SR50N EI and MB-118EI ranges covering fire doorsets, fixed lights, internal partitions and curtain-wall infills. The MB-78EI product page declares fire-resistance classes from EI 15 to EI 90 to EN 13501-2:2016-07 with smoke-control classes Sa3 and S200 and self-closing class C5 to EN 1191, and displays certification marks from ift Rosenheim and ITB. The MB-118EI wall system holds Krajowa Ocena Techniczna ITB-KOT-2019/1070, second edition, issued in November 2024 and valid to November 2029, in the company’s own name. Aluprof is part of the Polish Grupa Kęty and its fire systems are Polish-designed and Polish-extruded, with plants at Opole, Goleszów and Złotów.