The lock bolt is in the mailbox does not always withstand the encroachment of the feeder bullies. Too primitive its form is thin and the iron from which it is made.
But if you replace the stock bolt with steel plate cross-section 20×3 mm, bent as shown, so just the box, no one will open.
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“Mixer” for concrete
In two evenings I built a simple but productive concrete mixer that makes work on country-site construction much easier and faster.
I was building a garage from 400x200x200 mm concrete...
UNIVERSAL PLATFORM
FOR HIGH-SPEED RADIO CONTROLLED MODEL WITH INTERNAL COMBUSTION ENGINES. Model of class "Grand Prix", which the figure shows a contour is given in scale of 1 :8. Engine — the meteor-MD-5,...