本厂是汽车发动机液压挺杆和活塞销的专业化生产企业。
The factory is Tappet car engine and hydraulic piston pin the specialized production enterprises.
为实现各类异形销孔的精密加工，提出了一种基于磁致伸缩材料的新型镗杆结构，并对其进行了结构优化和试验验证。
A new magnetostriction material boring bar is presented for precision finishing of different types of odd-shaped pinholes, and structural optimization and test validation are carried out.
为了确保臂杆和阀瓣螺母之间的安全连接，使用了开口销。
To ensure a secure connection between the arm and the disc nut, split pin is used.
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