Anonymous ID: 6c5f5a Dec. 4, 2020, 10:41 a.m. No.11903221 🗄️.is 🔗kun >>11903108 Conductive sheet metal. And lots of it. https://www.ramayes.com/RF_Shielded_Room.htm
Anonymous ID: 6c5f5a Dec. 4, 2020, 10:43 a.m. No.11903240 🗄️.is 🔗kun >>3293 >>11903108 Sheet metal. Lots of sheet metal. https://www.ramayes.com/RF_Shielded_Room.htm