Polish P-3 Concrete Prefab Trench Reinforcement
From an earlier post
Having a hell of a time calculating this. Guesstimating the size and plugging it into a concrete calculator gives me about 200kg each which seems way off.
[Edit: Pre-cast concrete manholes of similar dimensions weigh between 15kg and 35kg. I'm just giving a number of 25kg as a round number)
Anyway:
Concrete Prefab Trench Reinforcement P-3 (Polish)
2.0mx0.5m(average)x0.15m, 25kg
Price $2 (C/V)
(Note: I also have some data on Soviet precast bunker sections SBK, PRU-3 & PRU-2 as well as their standard fittings. However I'll wait to update all this when I get images working on this forum)
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