GB/T 21200-2024 Chinese PDF (GB /T21200-2024) GB/T 29292-2024 GB 31648-2025_Chinese: National food safety

GB 31648-2025_Chinese: National food safety standard - Code for pollution control of dioxins and polychlorinated biphenyls in food (Chinese: 食品安全国家标准 食品中二噁英及多氯联苯污染控制规范)

1-2025_Chinese: Test methods for polarizers of flat panel displays - Part 1: Physical and chemical properties (Chinese: 平板显示器偏光片测试方法 第1部分：理化性能)

GB/T 28906-2025_Chinese: Hot-rolled steel wire rod for cold heading (Chinese: 冷镦钢热轧盘条)

7-2025_Chinese: Plastics - Polyether polyols for use in the production of polyurethane - Part 7: Determination of basicity (Chinese: 塑料 聚氨酯生产用聚醚多元醇 第7部分：碱性物质含量的测定)

1-2024_Chinese: Non-destructive testing - Penetrant testing - Part 1: General principles (Chinese: 无损检测 渗透检测 第1部分：总则)

GB/T 21200-2024 Chinese PDF (GB /T21200-2024) GB/T 29292-2024 GB 31648-2025_Chinese: National food safetyGB T 21200 2024_Chinese: Toner used in dry dual component developer for laser printer (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21200 2024