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jib door (與墻同樣高矮和同樣顏色的)隱門。

jib headed

The super light friction steel - support is suitable for jib door window , it can not only meet your requirement on security and convenience when opening , but also serve you with enough force of friction 產品說明:輕量級的摩擦式鋼撐適用于平開窗戶,它能滿足你對安全性及開關方便的需求,并且在你開窗子的時提供足夠的摩擦力。