关于准备4-1/2“电动铰链框架的可接受方法的实用信息。本文件允许框架制造商在了解所使用的特定电动铰链之前提供框架。

Practical information regarding an acceptable method for preparing frames for 4-1/2" electric hinges. This document will allow frame manufacturers to provide frames prior to having knowledge of the specific electric hinge being used.