门窗安装要符合安装工序，随时检查和调整每道工序的安装质量。
Follow the processing standard for installation. Inspect and adjust every step during installation in order to guarantee the quality.
门窗安装后，出现一头高一头低、扇和框的缝隙不均匀现象，有时存在上宽下窄或下宽上窄的问题。
After door window is installed, appear directly tall the aperture of low, fan and casing is inhomogenous phenomenon, exist sometimes on wide below narrow or below wide on narrow issue.
为了执行规定，建筑商必须安装高质量的门锁和防盗门窗。
To comply with the code, builders had to fit high-quality locks and burglar-proof windows and doors.
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