Medical bubbles, and especially the opened vial is very fragile, and spill their contents sometimes very simple. To avoid this, use a “tortilla” of clay: recessed in her glass bottoms of tanks holding up, as if glued.
V. GOLOVASHIN, Rybnoe, Ryazan region.
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...
THE GLIDER “SLAVUTICH-UT”
The design of the "Slavutich-UT" is a classic: tubular frame, cable system stretching and edging with the main elements of armor. The device is equipped with removable wheels and safety...