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GB 25502-2024_Chinese: Minimum allowable values of water efficiency and water efficiency grades for water closets (Chinese: 坐便器水效限定值及水效等级)
GB/T 21037-2024_Chinese: Determination of diaveridine
English versions: GB/T 24238-2025
English versions: GB 19272-2024
GB/T 19822-2024_Chinese: Specification for hard anodic oxidation coatings on aluminium and its alloys (Chinese: 铝及铝合金硬质阳极氧化膜规范)
GB/T 23538-2023 Chinese PDF (GB/T23538-2023) GB 29141-2024 GB 25502-2024_Chinese: Minimum allowable valuesGB T 23538 2023_Chinese: Conventional abrasive Determination method of ball milling toughness index (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23538 2023
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