Fire dirating lawang baja kekandelan rwaning lawang dipérang dadi telung standar, A, B, C, lan wis jampel swara banget lan kinerja insulasi panas. Lawang geni baja bisa disedhiyakake karo jendhela, jendela, jendela ventilasi, lan liya-liyane kaya sing dibutuhake. Welcome kanggo takon kita.

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