-3- NF A 35-016 目 录 页码 前言 ..............................................................................................................................................4 引言 ..............................................................................................................................................4 1. 适用范围.................................................................................................................................4 2. 参考标准.................................................................................................................................5 3 .1 凸点 ...............................................................................................................................5 3 .2 凸点区域分布 .................................................................................................................5 3 .3 横向加强筋 ....................................................................................................................5 4. 分类和描述 .............................................................................................................................5 4 .1 分类 ...............................................................................................................................5 4 .2 钢的描述 ........................................................................................................................6 4 .3 产品描述 ........................................................................................................................6 5. 制造工艺.................................................................................................................................7 5 .1 钢的制造过程和抗氧化 ...................................................................................................7 5 .2 产品制造工艺 ...............................................................................................