The punch former is a tool which grinds the standard punching pin head blade (POINT).
冲子研磨器是标准冲子头刀口（POINT）之工具。
Heat punching process of pin axle hole of chain plate with high strength, big thickness and long circumference was introduced, and a few attention issues of heat punching process were given.
介绍了强度高、厚度大和周边长的链板销轴孔的热冲裁加工以及链板热冲裁加工中的几个问题。
Heat punching process of pin axle hole of chain plate with high strength, big thickness and long circumference was introduced, and a few attention issues of heat punching process were given.
介绍了强度高、厚度大和周边长的链板销轴孔的热冲裁加工以及链板热冲裁加工中的几个问题。
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