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
DOOR FOR PIPE
When you put the samovar in the house, the smoke given often through the window pane But when you have to throw in a pitcher samovar wood or coal lumps, the room is filled with smoke. ...
MASHED POTATOES-COWS
Preparation of feed for Pets will go much faster with electrothermy. Five minutes turns out two buckets of chopped vegetable mass — juicy supplements to straw, the Seine and other dry...
