常用异型构件板金工下料尺寸的计算方法

Computational methods of plat worker cut out size for normal non standard structural elements.

〕根据异型构件画展开图的原理，应用画法几何、立体几何等的相互关系。

According to make developed drawing principle of non standard structural elements, with the help of descriptive and solid geometry, author presents several computational methods of plat worker cut out size for normal non standard structural elements.