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GB/T 23595.3-2025 Chinese PDF (GB /T23595.3-2025) GB/T 21270-2025 English versions: GB/T 32440
GB/T 23595.3-2025 Chinese PDF (GB /T23595.3-2025) GB/T 21270-2025 English versions: GB/T 32440
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English versions: GB/T 32440
English versions: GB/T 32865-2025
English versions: GB/T 33523
and the use of cast irons (Chinese: 石油天然气工业 油气开采中用于含硫化氢环境的材料 第2部分：抗开裂碳钢、低合金钢和铸铁)
GB/T 18851
GB/T 23595.3-2025 Chinese PDF (GB /T23595.3-2025) GB/T 21270-2025 English versions: GB/T 32440GB T 23595. 3 2025_Chinese: Test methods of rare earth phosphors for LED Part 3: Determination of chromaticity coordinates (Chinese: LED 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23595. 3 2025
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