5. The double-arm lever with scale divisions of 1 to 10 - Figure 5
6. Set S-shaped hooks for hanging numbers - Figure 6
Suspension numbers to the arm or to each other is made by means of hooks, which are separated from the Г- shaped by their ease of rotation around the connection or cut with scissors.вается стойка, на ось коBased on the weights rack mounted on the axis of which is worn double-arm lever with scale divisions and the release button.
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