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GB/T 20424-2025_Chinese: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products (Chinese: 重有色金属精矿产品中有害元素的限量规范)
English versions: GB/T 32251-2024
GB/T 45337-2025_Chinese: Tires intelligent manufacturing - Manufacturing execution system(MES) deployment - General specification (Chinese: 轮胎智能制造 制造执行系统（MES）部署 通用规范)
GB/T 23538-2023_Chinese: Conventional abrasive - Determination method of ball milling toughness index (Chinese: 普通磨料 球磨韧性测定方法)
English versions: GB/T 31547-2023
GB/T 3519-2023 Chinese PDF (GB/T3519-2023) GB/T 33290.22-2024 GB/T 20424-2025_Chinese: The specification forGB T 3519 2023_Chinese: Cryptocrystalline graphite (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 3519 2023
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