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CONTACT US | service@chengyi.com. CHENG YI OPTICAL CO.,LTD. (OEM & ODM) | Over 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
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