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
AKVAPLAN CO2
When it's rainy or cold weather and hold races racing gliders with the engine or rubber motor there is no opportunity, there comes a time of some discouragement. However, if there is...
COT – CHAIR
We are not talking necessarily about that which you have and continues to serve you, helping out, when the relatives descend or distant guests. If you still need it — let it stand in...
