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The shutter cover provided by the invention has large opening Angle, long service life and low cost.
本发明的百叶窗盖开启角度大、寿命长、成本低。
youdao
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The shutter cover provided by the invention has large opening Angle, long service life and low cost.
本发明的百叶窗盖开启角度大、寿命长、成本低。
youdao