GB/T 2099.31-2025 Chinese PDF (GB /T2099.31-2025) GB/T 19799.2-2024 GB/T 22453-2025_Chinese: Non-linear optical crystal

GB/T 22453-2025_Chinese: Non-linear optical crystal devices measuring method for laser (Chinese: 激光用非线性光学晶体元件性能测量方法)

English versions: GB/T 20236-2025

GB/T 24217-2025_Chinese: Washing oil (Chinese: 洗油)

1) - Part 2: Information object specification (Chinese: 信息技术 抽象语法记法一（ASN

1-2025_Chinese: Nickel base brazing filler metals - Part 1: Solid brazing filler metals (Chinese: 镍基钎料 第1部分：实心钎料)

GB/T 2099.31-2025 Chinese PDF (GB /T2099.31-2025) GB/T 19799.2-2024 GB/T 22453-2025_Chinese: Non-linear optical crystalGB T 2099. 31 2025_Chinese: Plugs and socket outlets for household and similar purposes Part 31: Particular requirements for socket outlets incorporating USB power supply (Chinese: 31USB) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2099. 31 2025