Fasten on the side of its walls pieces of rubber hose — doors of your car are always safe.
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Solar boiler room
Among the responses received to the All-Union competition “Small Mechanization” held by the editors together with the Central Committee of VOIR, there are many letters asking for the...
COMBINATION LOCK
It can be used for protection of vehicles, equipment of various premises. The "key" to the lock is a combination that is dialed using the three buttons. Easy change of code, the...
