When working with pencil on wood or cardboard, the pencil lead wears out quickly. To reduce the abrasion of stylus, and increasing the strength of the sharpened part of the pencil need to dip the tip in a quick-drying lacquer: furniture NC, caponiac, potekla.
Recommend to read
DIODE AND “CHEERFULNESS”
If parallel to one of the switch contacts vibrating "Fit" to connect a diode (for example, Д226Б), we obtain the switch modes of operation: can choose to increase the efficiency of the...
ROTOR-CUTTER
In the conditions of the automated production of metal-cutting tools are especially high requirements of reliability and durability, especially when cutting hard materials and alloys. ...
