A description has been made on a structure and principle of progressive die used on a general press for shear, upsetting and automatic feed used for forming small axial parts.
2
论述圆形拉伸件卸料装置的几种结构形式和应用范围，并介绍卸料装置的主要零件——卡瓣的设计方法和思路。
The problems exist in the mixing drum scraper device of Shaogang sintering plant were analyzed, and the new structure of subsection and demountable scraper was presented.
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