GB/T 31547-2023 Chinese PDF (GB/T31547-2023) GB/T 28957.1-2023 English versions: GB/T 35624-2025

English versions: GB/T 35624-2025

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 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)

English versions: YY/T 0860-2024

GB/T 45314-2025_Chinese: Road vehicles - Performance requirements and test methods for hands free communication and voice interaction (Chinese: 道路车辆 免提通话和语音交互性能要求及试验方法)

GB/T 31547-2023 Chinese PDF (GB/T31547-2023) GB/T 28957.1-2023 English versions: GB/T 35624-2025GB 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