This article mainly introduces the application of Delta 20pm in automatic continuous band sealer, which is mainly applied to the 20pm electronic CAM and aeroplane.

本文主要介绍了台达20pm在制袋机设备上面的应用，主要应用的功能是20pm的电子凸轮和飞剪方面的应用。

youdao

The selecting principle, type and application, trend of the plastics in aeroplane and aerospace industries, especially the special engineering plastics and advanced composite, were reviewed.

介绍了航空和航天工业用塑料的选材原则、品种和使用要求及其发展趋势。

youdao