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[專利證書]一種繼電器插座（實(shí)用）![[專利證書]一種電磁繼電器（實(shí)用）](http://www.njbojunschool.com/zs/big/20231214113143.png)
[專利證書]一種電磁繼電器（實(shí)用）![[專利證書]自動(dòng)鉚接機(jī)（實(shí)用）](http://www.njbojunschool.com/zs/big/20231214113331.jpg)
[專利證書]自動(dòng)鉚接機(jī)（實(shí)用）![[專利證書]一種高壓大電流微動(dòng)開關(guān)（實(shí)用）](http://www.njbojunschool.com/zs/big/2023121413547.jpg)
[專利證書]一種高壓大電流微動(dòng)開關(guān)（實(shí)用）![[專利證書]一種合金觸頭以及具有合金觸頭的電接觸片（實(shí)用）](http://www.njbojunschool.com/zs/big/20231214131549.jpg)
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[專利證書]自動(dòng)插公共腳機(jī)（實(shí)用）![[專利證書]一種繼電器底座（實(shí)用）](http://www.njbojunschool.com/zs/big/20231214141330.jpg)
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[專利證書]一種小型磁保持繼電器（實(shí)用）