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该装置结构简单、使用方便,适用于金属窗框和塑料窗框。
The utility model which has simple structure and easy use is suitable for metal window frames and plastic window frames.
youdao
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该装置结构简单、使用方便,适用于金属窗框和塑料窗框。
The utility model which has simple structure and easy use is suitable for metal window frames and plastic window frames.
youdao