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Ly plastic steel profile，Ly upvc finished window，Multicolor profiled plastic steel doors and windows

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Allowable deviation and inspection method of LY Upvc door and window installation

Allowable deviation and inspection method of LY Upvc door and window installation

1. Installation of doors and windows: the gap between the door and window frame and the wall shall be full, and the door and window frame shall be horizontal and vertical with the same height. The installation position of connectors shall be correct, the spacing shall be ≤ 600, the frame and wall shall be firmly connected, the gap shall …

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