GB/T 28182-2024 Chinese PDF (GB/T28182-2024) GB/T 17727-2024 1-2025_Chinese: Semi-finished spectacle lens blanks

1-2025_Chinese: Semi-finished spectacle lens blanks - Part 1: Single-vision and multifocal (Chinese: 半成品镜片毛坯 第1部分：单焦和多焦)

GB/T 29479

GB 17918-2025_Chinese: Safety specification for dust explosion protection in bulk grain loading and unloading system in port (Chinese: 港口散粮装卸系统粉尘防爆安全规范)

English versions: GB/T 26232-2025

1-2024_Chinese: Assistive products for walking manipulated by both arms - Requirements and test methods - Part 1: Walking frames (Chinese: 双臂操作助行器 要求和试验方法 第1部分：框式助行器)

GB/T 28182-2024 Chinese PDF (GB/T28182-2024) GB/T 17727-2024 1-2025_Chinese: Semi-finished spectacle lens blanksGB T 28182 2024_Chinese: Surge arresters containing series gapped structures with rated voltage 52 kV and less (Chinese: 52 kV) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28182 2024