GB/T 28799.4-2024 Chinese PDF (GB/T28799.4-2024) GB/T 21711.2-2024 GB/T 45418-2025_Chinese: General technical directives

GB/T 45418-2025_Chinese: General technical directives for distribution networks (Chinese: 配电网通用技术导则)

English versions: GB/T 20717-2024

GB/T 12540-2024_Chinese: Minimum turning circle diameter

English versions: GB/T 44956-2024

GBZ27001-2025_Chinese: Conformity assessment - Common elements - Principles and requirements (Chinese: 合格评定 通用要素 原则与要求)

GB/T 28799.4-2024 Chinese PDF (GB/T28799.4-2024) GB/T 21711.2-2024 GB/T 45418-2025_Chinese: General technical directivesGB T 28799. 4 2024_Chinese: Polyethylene of raised temperature resistance(PE RT) piping systems for hot and cold water installations Part 4: Valves (Chinese: PE RT 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28799. 4 2024