Do not you find that a bunch of keys in your pocket slizhkom became cumbersome? Solder them in pairs, and it will be much more compact and easier to use. The keys are connected to a pair of depending on the length and destination. Possible combinations can be the key to the apartment and from the mailbox; the key of the garden gate, and to give the key to the garage and from the castle at the gate.
Recommend to read
TRACTOR AS THE TRACTOR
The idea to build a small tractor did not come from "itching" technical creativity and the urgent need for mechanization of the farm and the transportation of economic goods. The last...
START of CLASS A1
The unusual design of bearing areas — that is the main distinguishing feature of the proposed model glider. Their advantage in ease of manufacture. The absence of cut from the sheet...
