1.Certificate:ISO9001,2000,CE,FDA. 2.Professional manufacture for 10 years. 3.Own stable customers 4.Material:acetate Detailed information:1.Our products :medium and high grade lady's frame ,man's frame ,kid's frame and unisex frame .2.Materials:stainless steel, metal memory ,plastic memory ,acetate ,sillicon ,aluminium,copper.cupronickel ,monel,high nickel.3.Packing : 1 piece per plastic bag ,12 ...