因外形相似7字，被称之为七字执手，它是门窗中的一个配件，广泛应用于铝合金和塑钢门窗上。
Because lookalike, 7, called Twentysomething handle, it is a fitting Windows and doors, widely used in aluminum and steel doors and Windows.
因外形相似7字，被称之为七字执手，它是门窗中的一个配件，广泛应用于铝合金和塑钢门窗上。
Because lookalike, 7, called Twentysomething handle, it is a fitting Windows and doors, widely used in aluminum and steel doors and Windows.
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