- 13
- Mar
fire rated wall hatch,sliding door fire door,insulated fire rated door
Čelična protupožarna vrata sastoje se od čeličnog okvira i čeličnog krila vrata. Čelična konstrukcija može osigurati da nije osjetljiva na deformacije od udarca i oštećenja vanjske sile te se može normalno koristiti dugo vremena bez zamjene.
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