GB/T 20972.2-2025 Chinese PDF (GB /T20972.2-2025) GB 5009.300-2025 1-2025_Chinese: Information technology - Abstract

1-2025_Chinese: Information technology - Abstract Syntax Notation One(ASN

English versions: GB/T 17591-2025

GB/T 18299-2024_Chinese: Automotive LPG steel cylinder multivalve (Chinese: 机动车用液化石油气钢瓶集成阀)

GB/T 25982-2024_Chinese: Limits and measurement methods for bus interior noise (Chinese: 客车车内噪声限值及测量方法)

GB/T 24477-2025_Chinese: Accessibility to lifts for persons including persons with disability (Chinese: 适用于残障人员的电梯附加要求)

GB/T 20972.2-2025 Chinese PDF (GB /T20972.2-2025) GB 5009.300-2025 1-2025_Chinese: Information technology - AbstractGB T 20972. 2 2025_Chinese: Petroleum and natural gas industries Materials for use in H2S containing environments in oil and gas production Part 2: Cracking resistant carbon and low alloy steels, and the use of cast irons (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20972. 2 2025