The soles of the feet when digging the ground, will not be so uncomfortable if the shoulders of the shovel to pull the trim rubber or plastic garden hose.
During operation, the hose is not slipping, the nozzle should be made from a single piece, having in the middle a cutout for the shaft.
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L-39
Double training aircraft (TCB) L-39 the company's "Aero Vodochody" in the Czech Republic was established in 1968. In the USSR, since 1973, has delivered over 2,000 aircraft of this type....
