很漂亮的扁平 UI 的 PSD 设计原稿，免费的！

PSD Freebie UI Kit

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Flat Design UI Components

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Vertical Infinity – A Mega Flat Style UI Kit

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Sven – Modern PSD Ui Kit

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Flat UI Kit

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Flat Rounded Square UI Kit

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Flatex UI Kit Pro v1.0

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Avengers Flat UI Kit

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Orange/Cyan UI

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Color UI Kit

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Dark UI Kit

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Blog/Magazine Flat UI Kit

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UI Kit

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Square UI Free

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Flat Ui Kit

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Ui Kit

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Artboard V3

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Flatilicious User Interface

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Flat Web Elements

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UI/UX Flat design

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Smooth Berry UI

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Gems UI Kit

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Simple UI Kit with Flat Colors

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via thegeekzum

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本文标题：再来 20+ 个超棒的扁平 UI 工具包的 PSD 设计
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