The door frame of UL fireproof door is made of galvanized steel plate, and the door leaf is made of galvanized steel plate, stainless steel plate, and coated steel plate. The interior is filled with perlite fireproof door core plate. The fire resistance rating of UL fireproof door is 20-180 minutes, please consult us.

ZHTdoors lawang geni, 31 taun pengalaman produksi ing lawang geni lan Windows. Lawang geni UL utama, lawang geni EN, lawang geni BS EN, lan liya-liyane, Kita duwe sertifikasi.ZHTdoors ndhukung OEM lan desain gratis.Kauntungan kita: kualitas apik, rega pabrik, layanan apik. Sugeng rawuh kanggo konsultasi karo kita.