GB/T 19980-2025 Chinese PDF (GB /T19980-2025) GB 5009.303-2025 English versions: GB/T 14124-2024

English versions: GB/T 14124-2024

English versions: GB/T 20424-2025

GB/T 18912-2024_Chinese: Salt mist corrosion testing of photovoltaic (PV) modules (Chinese: 光伏组件盐雾腐蚀试验)

4-2024_Chinese: Chemical analysis methods of mixed rare earth oxide of ion-absorption rare earth ore - Part 4: Determination of iron trioxide content - Inductively coupled plasma atomic emission spectrometry (Chinese: 离子型稀土矿混合稀土氧化物化学分析方法 第4部分：三氧化二铁含量的测定 电感耦合等离子体发射光谱法)

1-2025_Chinese: Traffic signs and markings - Part 1: General (Chinese: 道路交通标志和标线 第1部分：总则)

GB/T 19980-2025 Chinese PDF (GB /T19980-2025) GB 5009.303-2025 English versions: GB/T 14124-2024GB T 19980 2025_Chinese: Textiles Method for assessing appearance of textile products after domestic washing and drying (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19980 2025