上述暗合页安装在安全门窗上，克服了现有合页的缺陷，可进一步增加防撬、防砸、防钻功能。
The blind hinge which is arranged on safety Windows and doors overcomes the defects of an existing hinge, and can further increase the functions of anti-prizing, anti-cracking and anti-drilling.
上述暗合页安装在安全门窗上，克服了现有合页的缺陷，可进一步增加防撬、防砸、防钻功能。
The blind hinge which is arranged on safety Windows and doors overcomes the defects of an existing hinge, and can further increase the functions of anti-prizing, anti-cracking and anti-drilling.
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