leunghb 发表于 2013-12-10 09:45:53

MIL-PRF-1/781F 29 May 2013 Electron Tube, Thyratron Type 6D4

MIL-PRF-1/781F
29 May 2013

Electron Tube, Thyratron Type 6D4

admin 发表于 2013-12-10 10:14:33

谢谢您的分享，金币已奖励！
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