Taizhou Changsheng Trading Co. Ltd located in Taizhou, and our factory also in Taizhou, the largest sunglasses manufacturing and processing base in China. Changsheng is a set of R&D, production of marketing enterprise, specialized in glasses, such as sunglasses, optical frame glasses, reading glasses, sport sunglasses, night vision glasses, Anti blue light glasses, Photochromic, clear lens glasses, eyewear accessories, etc. We are professional service company specializing in global glasses B2B. We have strict and complete quality control system, each product can meet quality requirements of every client. We have CE and FAD certificate to meet USA and Europe market. We look forward to establishing friendly and cooperative business contacts with you. Together to achieve mutual benefit and win-win.