All productions in house, we are making Optical frames Sunglasses Reading glasses Functional eyewear 200 people in design & technical departments Over 40 self-creations per month Over 15,000 styles from a leading manufacturer since 1978 Customized orders welcome Rapid Prototype in 7 work days 1.35 million units produced per month In-house plating & Varnishing systems for metal & plastic frames In-house labs for international quality standards Our Quality can meet International Standards: EN ISO 12311:2013 / 12312-1:2013 AS/NZS 1067,2003 ANSI Z80.3-2010 ANSI Z87.1 EN1811 & EN12472-1999 ISO12870 R.E.A.C.H R.o.H.S FDA Contact us | service@chengyi.com