Nanjing Yujia Electronic Commerce Co., Ltd. is a professional optical eyeglasses frame manufacturer. Danyang City is one of the biggest production bases of optical eyeglasses frames, metal eyeglasses frames, acetate frames, plastic eyeglasses, pure titanium eyeglasses, mixed eyeglasses frames, TR90 & TR100 eyeglasses frames, optical lens, CR39 1.499 index lens, 1.56 index single vision lens, 1.61 index single vision lens, 1.67 index single vision lens, bi-focal lens, progressive multi-focal ...