SJ 21187-2016 挠性印制电路用覆盖层规范.pdf

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SJ T 10500-1994 CH1型印制电路连接器.pdf

SJ 2070-1982 CY401型印制电路插座.pdf

SJ T 10499-1994 CY251型印制电路连接器.pdf

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SJ 20101-1992 KLC18型印制电路用双向按钮式指示轮编码开关详细规范（照明或非照明,密封或非密封,电磁干扰与射频干扰屏蔽或无屏蔽）.pdf

SJ 51438.5-1995 PM23型接触件间距为1.905mm的印制电路插头连接器详细规范.pdf

SJ 51438.6-1995 PM24型接触件间距为1.905mm的印制电路插座连接器详细规范.pdf

GB T 4723-2017 印制电路用覆铜箔酚醛纸层压板.pdf

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