穿上自慰内裤出门好爽,撕开胸罩胸奶头玩大胸动态图片,国产 成 人 黄 色 网站

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    SB-770 Fireproof Bag

    1、Product introduction
      Fireproof bag is a pillow shaped fireproof blockage finely made of noncombustible cloth and filled with heat insulation and expansive material with the techniques of water-and oil-proof. The product has the characters of nontoxic, inodorous, non-erosive; fire-, oil- and water-proof. It can be formed into the walls with all kinds of shapes. It is very easy to install and remove. It is suitable for the circumstances in which it needs to be changed often, increase or decrease the numbers of the cables often. When it meets fire, the bag will be expanded to fill the place tightly and form a firm fireproof wall. It can effectively prevent the enlargement of the fire.
    2、Physical and chemical capability technical parameters

    3、Construction methods
      Clean up the places which will be blocked, pack up the fireproof bags to make the 4 sides and 4 angles of them full. When the bags are piled to the cables, embed the organic blockage material into the gaps between the cables tightly, then go on with piling the bags. While piling the fireproof wall in the cables’ ditch, build a frustum with scuppers first, put a fireproof board used as a damp course on the frustum, then the bags are laid to overlap each other till the top. While piling the fireproof wall in the cables’ tunnel, the bags can be used together with fireproof boards and doors. At the important places in the cables’ ditches such as the locations where the cables go indoors, the subsections of outdoor main cables’ ditches, cover the both sides of them with fireproof boards after piling up the bags in order to increase the anti-calamity’s strength and protect the fireproof wall from being destroyed by small animals. At the same time, it can prolong the years of service.

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    穿上自慰内裤出门好爽,撕开胸罩胸奶头玩大胸动态图片,国产 成 人 黄 色 网站