For many years engaged in bookbinding business. Stapling the sheet sets at the root, not sew them, string, inserting in the cuts the block with a depth of 3 to 4 mm sturdy thread in the shown sequence. Then coat the lace with glue— everything works faster and stronger.
O. EVDOKIMOV, Saint-Petersburg
Recommend to read
TO NOT UNSCREW THE SCREW
To nut the connections didn't loosen during operation of the device, usually put the second (jam nut) or enclose the washer Grover. If such is not at hand or you need to fix the little...
“BUILDING” MATERIAL – PAPER
With 2010 came into force changing the rules of competition flying the sport in Russia. It touched upon the technical requirements. Continue the body of the model rocket for flight...
