Manufacturing Tolerances Standard Steel Doors and Frames
制造公差标准钢门和框架
本文件旨在为标准钢门和框架的用户和潜在用户提供有关门和框架榫眼和制造公差的实用信息。
This document is intended to furnish users and prospective users of standard steel doors and frames with practical information regarding mortise and manufacturing tolerances for both doors and frames.