Metal Optical FrameProduct Name: Metal Optical Fram Description :Material:Metal Eyeglasses , Acetate temples , Demo Lens, metal Deckor on endpiecesQC Standard:GB2828 ... Carbon FiberHinge:Spring hinge, 3 tooth , 5 tooth , 7 tooth, OBE or Comotec available,specified hinge supplier etc. ... problems we promise to solveAdvantage for our Metal Optical Frame1.Solid soldering,high standard for polising before ...