Along with careful design, all of my rings are created using mechanical CAD drawing, I use special software to perform “FEA” analysis on all my tension rings. Several factors much be taken into account to make the ring strong, lightweight and beautiful. The rings are then made out of military grade titanium with precise accuracy. After the ring is cut to shape, it is heat treated and work hardened to increase the strength of the metal. cheap football shirts cheap football shirts sale 2016 cheap football shirts manchester united football shirt child manchester united football shirt sale manchester united football shirt 2016 Arsenal football shirts arsenal football shirts for sale arsenal football shirts personalised cheap football tops football shirts football shirts shop discount football kits cheap football kits football kits football shirts online cheap football tops cheap football shirts stopkoch