If you need to pour the liquid from the jar into a container with a narrow neck and a funnel on hand that can be use inverted lid with a hole from a teapot or sugar bowl. R. MOROSIN, Vologda
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HECK WITH THE FUSE
To turn the latch in a secure lock will help you handle the handwheel from the tap.
LOCKS WITHOUT SECRETS
Both designs are quite small locks. On their basis it is possible to create other systems, more sophisticated. The first castle shown in figure 1, suitable for flat products — folders,...
