Modern bottles or tubes of glue or sealant have the tube feeding lengthened proboscis, in which the remaining mass dries up, making it impossible to re-use.
To avoid this, before a long break in the insert inside, beneath the peeled from the adhesive proboscis, plastic circle the size of the screw cap and the contents of the tube will never dry up.
Recommend to read
LASER PHONE
Materials about the specific features and infinite possibilities of lasers, including semiconductor, have been published in the journal "modelist-Konstruktor" (for example, No....
DRILL PIPE…
I want to share with the readers one very simple method of drilling holes in the glass, which I was taught many years ago Professor N. A. Artemyev. The method is attractive because it...
