GB/T 19713-2025 Chinese PDF (GB /T19713-2025) GB/T 19343-2025 socket-outlets and couplers for industrial

socket-outlets and couplers for industrial purposes - Part 6: Direct current(DC) plugs

English versions: GB/T 21099

GB/T 11918

English versions: GB/T 16702

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)

GB/T 19713-2025 Chinese PDF (GB /T19713-2025) GB/T 19343-2025 socket-outlets and couplers for industrialGB T 19713 2025_Chinese: Cybersecurity technology Public key infrastructure Online certificate status protocol (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19713 2025