GB/T 31547-2023 Chinese PDF (GB/T31547-2023) GB/T 28957.1-2023 English versions: GB/T 45172-2024

English versions: GB/T 45172-2024

GB/T 32456-2025_Chinese: General technical specification for energy saving heating system of rubber and plastics machines (Chinese: 橡胶塑料机械用节能型加热系统通用技术规范)

9-2024_Chinese: Low-voltage switchgear and controlgear - Part 6-2: Multiple function equipment - Control and protective switching devices (or equipment) (CPS) (Chinese: 低压开关设备和控制设备 第6-2部分:多功能电器 控制与保护开关电器（设备）（CPS）)

GB/T 44969-2024_Chinese: Metal ions removal in water soluble extracts of agricultural products - Ion exchange method (Chinese: 农产品水溶性提取物中金属离子消除方法 离子交换法)

GB/T 45136-2024_Chinese: Technical specification for somatic cell cloning of pig

GB/T 31547-2023 Chinese PDF (GB/T31547-2023) GB/T 28957.1-2023 English versions: GB/T 45172-2024GB T 31547 2023_Chinese: Electric bicycle inner tubes (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31547 2023