Lawang geni baja bisa dipérang dadi telung standar: A, B, lan C miturut ketebalan sing beda. Sing luwih dhuwur standar, luwih apik insulasi swara lan insulasi panas lawang geni.

https://ztfiredoor.com/24160.html

Therma tru 20 menit geni dirating lawang,lawang terisolasi fire rated,lawang lan lawang geni setengah,lawang geni dhuwur, lawang ngarep rating geni,14 × 14 geni dirating panel akses,lawang sing dirating geni rong jam,lawang lan lawang geni setengah,lawang sliding lawang geni,Therma tru 20 menit geni dirating lawang,nginstal lawang geni,14 × 14 geni dirating panel akses,lawang insulated fire rated,lawang lan lawang geni setengah,Therma tru 20 menit geni dirating lawang,hatch tembok sing dirating api, lawang sing dirating api 30 inci,14 × 14 geni dirating panel akses