发明名称 Method for Marking a Socket
摘要 A method is disclosed for marking a socket. The method includes the steps of providing a socket, pressing the socket to make an indented mark, executing thermal treatment on the socket, coloring a portion of the socket near the indented mark to form a printed layer, vibrating and grinding the socket to remove the printed layer from the socket except the indented mark, and electroplating the socket to form a coating on an external side and an internal side of the socket.
申请公布号 US2010180659(A1) 申请公布日期 2010.07.22
申请号 US20090356512 申请日期 2009.01.20
申请人 LIN DA-SEN 发明人 LIN DA-SEN
分类号 B21D3/00;B21K5/16;B25B13/06 主分类号 B21D3/00
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