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
AND TAKE OFF YOUR SHOES AND PUMP UP
Remove the boots helps convenient device, which is a plate under the heel of the Shoe. To protect the heel from damage, sharp edges of the recesses should be rounded, sanded, and even...
FUNNEL GUARANTEE
Confident fill the tank with a narrow neck to the desired level (for example, an automotive canister), if you equip the funnel with a special gauge. For its production will need a wire...