the impact resistance, the resistance to wear, discounted oakley sunglasses bears the resolver and own lubricating ability is fine, the hygroscopicity is slightly big, the size stability are bad. The nitric acid resin thermosplasticity said that the match fine jade road, the plasticity is good, processes the forming, the coloration is good, oakley sunglasses sale the outward appearance is attractive, degree of hardness is big, not easy fold back; The shortcoming is corroded easily the acidic material, flammable, easy to fade, when aging turns yellow changes crisp, generally does not stimulate the skin, is also not corroded the skin secretion, the small number of people will have the skin sensibility.oakley minute 2.0 Was already basic does not need .3. natural material to use in manufacturing the spectacle frames the natural material to have the special lumber, the animal buffalo and cow horns and the hawk's-bill turtle material and so on. Generally the wooden mirror holder and the cow angle bracket are rare, most representative is the hawk's-bill turtle mirror holder. oakley minute The hawk's-bill turtle material is uses produces the sea tortoise shell makes the mirror holder which in the tropics sea raw material makes. Its characteristic is the weight is light, glossiness is good, has the preserved value durably,