... Window: aluminum alloy encompassed by wood ● Door: steel security door or wood door ● Other fittings: shower ... security door or wood doorOther fittingsShower room, toilet, kitchen, carridorLifetime70 yearsCertificateISO,CESpecifications of steel ... roomKitchenToiletstudyporchYesYesYesYesYesYesRoofDecorative layer :asphalt shingles, color steel glazed tile, metal color stone ,resin ...