发明名称
摘要 A method of making a pipe fitting having a generally T-shape wherein a solid plug of malleable metal is first deformed to provide a tube closed at one end and having a thicker wall adjacent the closed end and thereafter further deforming the tube to provide a pair of legs adjacent the one end.
申请公布号 JPS553049(B2) 申请公布日期 1980.01.23
申请号 JP19760029780 申请日期 1976.03.17
申请人 发明人
分类号 B21C37/29;B21D26/02;B21D51/16 主分类号 B21C37/29
代理机构 代理人
主权项
地址