If you want ordinary “card” loop was samarastroydetal like spring-loaded, easy to upgrade. For this of eyes loop is extracted axial rod, and the reverse installation is put one or two springs so that their ends rested on the loop. Eyes for necessary for this file.
Recommend to read
AND NAIL — TOOL
Developed a lot of tools for punching large diameter holes in sheets of plywood; many of them are rather complicated or cumbersome. I need only a wooden plank to two nails. Hammer them...
MOPED “COTTON GROWER”
X all-Union week of science, technology and production for children and youth, held in January 1983 in the Uzbek capital, has raised a lot of interesting developments from many cities of...
