GR4 titanium wire for eyeglasses frame 1)size: 0.05-6.0mm 2). ... B863 3).material: Gr1, 2, 3, 4, 5, 7 GR4 titanium wire for eyeglasses frameMaterialGR1, GR2, GR3, GR4, GR5, GR7, GR9, GR11 ... /TPortTianjin port, Shanghai portApplicationChemical industry, industrial equipment, military, aerospace and electroplatingContactTel: 86-0917-3373613Fax: 86-0917-3371578 GR4 titanium wire for eyeglasses frame