aluminum alloy profile的用法和样例：
例句
- Keys to technology and die design of stamp-ing of Al alloy profile have been introduced.
介绍了铝合金型材在冲压加工时的工艺特点和模具设计要点。 - Profiles end powder frost after cold sealing for aluminium alloy profiles is generaed by over sealing of anodized film.
介绍了铝合金型材常温封孔后料端粉霜缺陷的产生机理，其实质是氧化膜的过封孔粉霜。
