You can, of course, brush them, however this will not last long. More radical means of plastic washer embedded between the half-loops.
There is another way to get rid of the squeak. You need to shorten rod one half loop and put the loop inside a steel bearing ball.
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IN THE FRIDGE — 0°C!
The journal "Modelist-Konstruktor" has more than once published materials about homemade "refrigerators," where natural cold is used for storing food, of which there is more than enough in...
WHAT IS THE DATE TODAY?
In wall weekly that's for sure indicate that this sliding arrow with a window cut out, for example, of cardboard, glued back zasypkoj of the same material.
