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GB/T 31239-2023 Chinese PDF (GB/T31239-2023) GBZ37551.4-2025 English versions: GB/T 45000-2024
GB/T 31239-2023 Chinese PDF (GB/T31239-2023) GBZ37551.4-2025 English versions: GB/T 45000-2024
$34.95
Description
English versions: GB/T 45000-2024
English versions: GB/T 2820
English versions: GB/T 37027-2025
1-2025_Chinese: Test methods of rare earth phosphors for LED - Part 1: Determination of spectrum (Chinese: LED用稀土荧光粉试验方法 第1部分：光谱的测定)
4-2024_Chinese: Mineral and sapphire watch-glasses - Part 4: Anti-reflective treatment (Chinese: 无机和蓝宝石手表玻璃 第4部分：减反射处理)
GB/T 31239-2023 Chinese PDF (GB/T31239-2023) GBZ37551.4-2025 English versions: GB/T 45000-2024GB T 31239 2023_Chinese: Technical specification for fittings of 1 000 kV substation (Chinese: 1000kV) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31239 2023
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