GB/T 31379.1-2025 Chinese PDF (GB /T31379.1-2025) GB/T 17925-2024 GB/T 10816-2024_Chinese: Zisha ware (Chinese:

GB/T 10816-2024_Chinese: Zisha ware (Chinese: 紫砂陶器)

1-2024_Chinese: Multimode optical fibres for telecommunication - Part 1: Sectional specification for category A1 multimode fibres (Chinese: 通信用多模光纤 第1部分：A1类多模光纤特性)

GB/T 33993-2024_Chinese: Two dimensional code for commodity (Chinese: 商品二维码)

GB 21342-2025_Chinese: Norm of energy consumption per unit production of coke (Chinese: 焦炭单位产品能源消耗限额)

20-2024_Chinese: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides - Ion chromatography method (Chinese: 稀土金属及其氧化物中非稀土杂质化学分析方法 第20部分：稀土氧化物中微量氟、氯的测定 离子色谱法)

GB/T 31379.1-2025 Chinese PDF (GB /T31379.1-2025) GB/T 17925-2024 GB/T 10816-2024_Chinese: Zisha ware (Chinese:GB T 31379. 1 2025_Chinese: Test methods for polarizers of flat panel displays Part 1: Physical and chemical properties (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31379. 1 2025