plate punch meaning in English

托板打孔凿,穿板器

Steel plate punched couplers
钢板冲压扣件
The history review of the hydraulic press for plate punching has been done on the analysis of its current status and suggestions of its future have been put forward
摘要回顾了国内板冲压液压机的发展历史，对目前的技术现状进行了分析，提出了未来板冲液压机的展望。
The makeup , structure features and key technique of a nc plate punching production line designed and manufactured based upon technical repertory of our company have been introduced with description of application future and market demand
摘要在公司技术储备的基础上，针对厚板冲孔加工我们设计制造了厚板冲孔数控生产线，文章介绍了生产线的组成、结构特点和关键技术，叙述了该生产线的应用前景和市场需求。