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Crystal-Star (Optical Materials) Tech. Co., LTD., located in Shenzhen and founded in 2004, is a company specializing in the production of polarized sunglasses lens manufacturer.  Our raw materials are from Germany, Japan, America, Tai wan etc.The company is dedicated to the research and development of polaroid production, now the development of TAC polarized lens, Nylon lens, 3D lens, and other related products are in a leading position in the industry.

The strengths of Crystal-star:
*Our lenses can meet mainstream intermational standard, including:
- ANSI Z80.3:2015
-EN ISO 12312-1:2013(A1:2015)
-AS/NZS 1067:2003(A1:2009)
-FDA report
*Our lenses can pest the following test:
-Drop ball impact resistant test
-Hardness test
-steel wool test
-Chemical resistant test.
-Haze test


Company can be according to customer requirements to produce FSTN, CSTN, has widely used in televisions, computers, MP3, MP4, and other display products.