Thin-walled tube of soft metal when you try to bend often creased. To avoid this, they are usually pre-stuffed with sand.
With the same purpose, you can use another method: navit on the future site of bend copper or aluminum wire – turns will not allow the tube to wrinkle at the bend.
The same result can be achieved using a suitable inner diameter of the spring.
Recommend to read
ONCE AGAIN, THE “PACE”
Any of us can certainly, without hesitation, to list a lot of famous planes, cars and ships, inscribed your page in history of development of military and civilian equipment. However, it...
DRIED FRUITS AT HOME
brickos — valuable fruit crop originated from Central Asia. However, not all varieties are suitable for drying because of the low content of the substance, the main component of which is...
