GB/T 15558.4-2023 Chinese PDF (GB/T15558.4-2023) GB/T 24212-2025 1-2024_Chinese: Assistive products for walking

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)

YY/T 0107-2024_Chinese: A mode ultasonic biometer for ophthalmology scanner (Chinese: 眼科A型超声测量仪)

English versions: GB/T 17469-2024

3-2024_Chinese: Implants for surgery - Ultra-high-molecular-weight polyethylene - Part 3: Accelerated ageing methods (Chinese: 外科植入物 超高分子量聚乙烯 第3部分：加速老化方法)

English versions: GB 12268-2025

GB/T 15558.4-2023 Chinese PDF (GB/T15558.4-2023) GB/T 24212-2025 1-2024_Chinese: Assistive products for walkingGB T 15558. 4 2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels Part 4: Valves (Chinese: PE 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15558. 4 2023