wood grain steel fire door,fire rated timber door 90min,wood fire-proof door

Kanggo ngindhari kesehatan masarakat, bahan ngisi ing lawang geni kayu minangka bahan insulasi geni sing ora beracun lan ramah lingkungan, sing ora mung nyuda biaya produksi, nanging uga entuk konservasi energi lan perlindungan lingkungan. Ketahanan geni saka lawang kayu tahan api ora kurang saka 0.6 jam.

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