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English versions: GB/T 26849-2025
GB/T 19277
7-2025_Chinese: Test methods of rare earth phosphors for LED - Part 7: Determination of thermal quenching (Chinese: LED用稀土荧光粉试验方法 第7部分：热猝灭性能的测定)
English versions: GB/T 18910
GB/T 24589.1-2024 Chinese PDF (GB /T24589.1-2024) GB/T 23506-2025 English versions: GB/T 26849-2025GB T 24589. 1 2024_Chinese: Financial information technology Data interface of accounting software Part 1: Enterprise (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 24589. 1 2024
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