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发明名称
ROTARY SWAGING METHOD FOR HOLLOW PISTON FOR BRAKE
摘要
<p>PURPOSE:To efficiently obtain the hollow piston without necessity of cutting work, by supporting a previously formed cup type blank with the rotatable holder, and by forming the groove for the boot using two or more rolling dies.</p>
申请公布号
JPS5395156(A)
申请公布日期
1978.08.19
申请号
JP19770009241
申请日期
1977.02.01
申请人
发明人
分类号
B21H1/18;B21H1/22;F16D65/18;F16D65/22
主分类号
B21H1/18
代理机构
代理人
主权项
地址
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