Materials of steel-wooden armored doors: HDF board veneered with natural wood skin, quality steel plate inside lining, U-type reinforced ribbons, sound-insulated rubber seal, quality core-inserted security lock, side lock points, wide vision peephole, doorbell, strong plate for installation of expanding bolt, fixation pin, decorative wood line, sound-insulated warmth reservation honeycomb, thicken door leaf frame, decorative wood line, strong hinge, etc.
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