GB/T 7911-2024 Chinese PDF (GB/T7911-2024) GB/T 44956-2024 English versions: GB/T 45142-2025

English versions: GB/T 45142-2025

generators and transformers (Chinese: 量度继电器和保护装置 第187-1部分：差动保护的功能要求 电动机、发电机和变压器比率制动差动保护和差动速断保护)

2-2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 2: Pipes (Chinese: 燃气用埋地聚乙烯（PE）管道系统 第2部分：管材)

18-2023_Chinese: Heavy mechanical general technical specification - Part 18: Opening gear drives system (Chinese: 重型机械通用技术条件 第18部分：开式齿轮传动系统)

English versions: GB/T 44963-2024

GB/T 7911-2024 Chinese PDF (GB/T7911-2024) GB/T 44956-2024 English versions: GB/T 45142-2025GB T 7911 2024_Chinese: High pressure decorative laminates made from thermosetting resins impregnated sheets (HPL) (Chinese: HPL) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 7911 2024