GB/T 31379.1-2025 Chinese PDF (GB /T31379.1-2025)GB T 31379. 1 2025_Chinese: Test methods for polarizers of flat panel displays Part 1: Physical and chemical properties (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31379. 1 2025
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