Interioré godhong lawang baja sing tahan api diisi karo bahan tahan api lan bahan insulasi termal anyar sing ramah lingkungan, lan bagean cekung lan cembung ing pasuryan lawang dibentuk dening peralatan profesional lan dipencet nganggo adesif sing ramah lingkungan. Lawang tahan api disegel ing persimpangan rwaning lawang lan kusen lawang lan ngubengi kaca tahan api, sing ningkatake kinerja tahan geni.

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