Using a strip of cloth, it is possible to screw the screw in any, even remote place.
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ELECTRIC CAR BATTERIES
You can make a simple model of the electric vehicle that will run on batteries. This will require: microelectrochemical PD-12A, flat battery, 4.5 V, two coils of No. 10 without thread,...
BROOM-“PULVERIZATOR”
For uniform spraying paint when decorating large or small surfaces, to create artificial "rain" indoor plants or spraying vegetable crops and shrubs with chemicals that help to combat...