Kevlar Bulletproof Vest »
By leily on Nov 13, 2008 in other | 0 Comments
Kevlar bulletproof vest is a relatively new way to protect the body against bullets. The Kevlar is a kind of synthetic fabric that has properties very similar to those of steel. This material has an optimal strength-to-weight ratio – its strength is 5 times bigger than that of steel and their weight is approximately the […]
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