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metal shutter: squeak [1](2s)：open, door, window;[2](2s)：closed, door, window;[3](1s)：closed, door, window下载 收藏快门(shutter) / 金属(metal)x1倍举报
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wooden shutter: [1](2s)：open, door, window;[2](2s)：close, door, window下载 收藏快门(shutter) / 其他x1倍举报
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large metal shutters running in track: slide both sides [1](9s)：open, door, window;[2](7s)：open, door, window;[3](7s)：open, door, window;[4](8s)：closed, door, window;[5](7s)：closed, door, window;[6](9s)：closed, door, window下载 收藏快门(shutter) / 金属(metal)x1倍举报
