3 ms·
Most of them are pretty thick so they can be used to line the walls of bunkers for extra bullet proofing.
by Eddy_Viscosity2 4y ago
Most of them are pretty thick so they can be used to line the walls of bunkers for extra bullet proofing.
- zeristor 4y agoOr book shelves along the wall as additional insulation, it must go someway to increasing the U value.