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24-11The 23rd China (Shanghai) International Optics Fair (SIOF 2025) will be held from February 20 to 22 of 2025 in Shanghai New International Expo Centre. YSTJ Co. invite you to visit us during this period.Being one of the leading manufacturers and exporters of Ophthalmic Lenses and Blanks in Chin
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24-11By the end of October, the quality management system of YSTJ Co. hasobtained multi-system certification according to ISO9001:2015 standard fromCNAS (China National Accreditation Service for Conformity Assessment), UKAS(United Kingdom Accreditation) and IAF (International Accreditation Forum).
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24-10Our factory will be closed from January 18 to February 16 of 2025 due to the Chinese New Year Holiday. Many vessels and flights from China might be cancelled up to middle of March due to this holiday.Our Sales Office will be closed from January 25 to February 5 of 2025, but you can still
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24-10Recently, YSTJ Co. was granted an invention patent for a design of portablereading glasses by China National Intellectual Property Administration, withpatent number ZL2019104472305 and certificate number 7434652.
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24-09As one of the most famous and established eyewear exhibitions in Europe,Silmo 2024 was held in Paris Nord Villepinte from September 20 to 23, 2024.
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24-06Visit Y&S during the 35th China International Optics Fair2024-06-18The 35th China International Optics Fair (CIOF 24) will be held from September 10 to 12 in Beijing. Y&S invite you to visit Beijing during this period. The exhibition Information is as follows.The 35th China Internation
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23-12Y&S strongly recommends that customers download the Quick Guide - Ophthalmic Lenses & Blanks (2.3M, QG240101) fromhttp://www.ystj.com/optical/od_1.htm. This is a PDF document that supports quick product search on Windows, Mac, iOS and Android systems using computers, tablets, and mobil
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23-10Purchase Guide - Ophthalmic Lenses, Blanks & Micro Fiber Cleaning Cloth 2024 (PG240101, 7M) of Y&S is available for download fromhttp://www.ystj.com/optical/od_1.htm. Most updated price lists, available power range, curve & thickness chart of each product and general conditions of
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20-12When the buyer pays through a third party (organization or individual), the buyer must ensure that the following conditions are met: Third parties (organizations or individuals) are not involved in financial violations such as money laundering.Third parties (organizations or individuals
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18-01Recently, some of our customer's maibox has been hacked and therefore it has suffered economic losses. After the hackers successfully controlled the mailbox of some customers, they intercepted the e-mails that were sent by the supplier, after replacing the supplier's bank account in the invo
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16-01As the widespread use of smartphones, tablet devices and computers increases the time we face a LCD/LED screen, more and more people suffer from eyestrain symptoms. One cause of this is believed to be the blue light emitted from the display on such devices. The shorter the wavelength, the stronger e