The four major glasses production bases , mainly in Shenzhen, Guangdong; Xiamen, Fujian; Wenzhou, Zhejiang and Danyang, Jiangsu. What are the differences between the four major eyewear industry bases? What are the most popular eyewear products in Shenzhen? What are the most popular eyewear products in Xiamen? What are the most popular eyewear products in Wenzhou? What are the most popular eyewear products in Danyang?
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