.拼接框架应采用高强度钢材或铝合金材料，外层涂有锌铝涂镀防锈涂料，拼接单元具有机械调整部件。 5.大屏幕拼接框架能十分完整地与大屏幕拼接墙配套，无缝隙，不受热胀冷缩等环境影响，保证拼接墙的无缝拼接。 拼接框架拼装成整体后，各相关部分线条整齐、平直，无高低不平现象。

BBU Update\BBU Update.pdf
BBU Update\XML File Download From BBU.pdf
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BBU Update

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