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English versions: GB/T 36217-2025
English versions: GB/T 16263
2-2025_Chinese: Semi-finished spectacle lens blanks - Part 2: Power-variation (Chinese: 半成品镜片毛坯 第2部分：渐变焦)
4-2025_Chinese: Instruments for stage measurement - Part 4: Ultrasonic stage recorder (Chinese: 水位测量仪器 第4部分：超声波水位计)
English versions: GB/T 15561-2024
GB/T 31126.2-2024 Chinese PDF (GB /T31126.2-2024) GB 19081-2025 English versions: GB/T 36217-2025GB T 31126. 2 2024_Chinese: Textiles Determination of perfluorinated and polyfluorinated compounds Part 2: Gas chromatography mass spectrometry method (Chinese: 2 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31126. 2 2024
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US$ 134.50
US$ 59.00
