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steel fire door with window,fire rated metal door with louver,steel fire rated interior door
Umume, lawang geni kanthi jendhela observasi kudu dipasang ing kamar komputer, bangsal, taman kanak-kanak lan papan liyane. Jendhela ing lawang geni kudu digawe saka kaca tahan geni, sing kudu dipriksa dening agensi testing. Welcome kanggo takon kita.
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