GB/T 19830-2023 Chinese PDF (GB/T19830-2023) GB/T 44934-2024 GB/T 45224-2025_Chinese: Smart city -

GB/T 45224-2025_Chinese: Smart city - Technical requirement for intelligent monitoring of urban transport infrastructure (Chinese: 智慧城市 城市交通基础设施智能监测技术要求)

1-2024_Chinese: Information technology - Security techniques - Non-repudiation - Part 1: General (Chinese: 信息技术 安全技术 抗抵赖 第1部分：概述)

GB/T 45293-2025_Chinese: Code of practice for breeding female moths inspection of silkworm (Bombyx mori

GB/T 19520

GB/T 19830-2023 Chinese PDF (GB/T19830-2023) GB/T 44934-2024 GB/T 45224-2025_Chinese: Smart city -GB T 19830 2023_Chinese: Petroleum and natural gas industries Steel pipes for use as casing or tubing for wells (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19830 2023