As the Russian proverb says, “water will find a hole”. And one that cannot be detected “by eye”. Help out in this case a bucket of water. Drop it into a “soggy” boot and squeeze, tightening the top shaft: emerging air bubbles from the holes will be given where it “hides”.
Recommend to read
VIBRATION AND QUALITY
The denser the stack will be the builders of the concrete, the stronger will be the monolith. That is why in industrial and housing construction in the manufacture of precast concrete...
NOV OLD RELAY
Of course, thyristor power switches in household appliances is very compact and convenient, but... КУ201, КУ202 and familiar to all cheap copies, unfortunately, tend unjustly to fail....
