GB/T 34874.4-2025 Chinese PDF (GB /T34874.4-2025) GB 45671-2025 GB/T 29117-2025_Chinese: Evaluating guide for

GB/T 29117-2025_Chinese: Evaluating guide for green schools (Chinese: 绿色学校评价导则)

5-2024_Chinese: Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 5: Cone devices (Chinese: 用安装在圆形截面管道中的差压装置测量满管流体流量 第5部分：锥形装置)

5-2024_Chinese: Sterilization of health care products - Biological indicators - Part 5: Biological indicators for low-temperature steam and formaldehyde sterilization processes (Chinese: 医疗保健产品灭菌 生物指示物 第5部分：低温蒸汽甲醛灭菌用生物指示物)

1-2025_Chinese: Connections for hydraulic fluid power - Ports with truncated housing and stud ends with metric threads - Part 1: Ports with truncated housing (Chinese: 液压传动连接 普通螺纹斜油口和螺柱端 第1部分：斜油口)

2-2025_Chinese: Overhead contact charging system for electric buses - Part 2: Charging connection set (Chinese: 电动客车顶部接触式充电系统 第2部分：充电连接装置)

GB/T 34874.4-2025 Chinese PDF (GB /T34874.4-2025) GB 45671-2025 GB/T 29117-2025_Chinese: Evaluating guide forGB T 34874. 4 2025_Chinese: Geometrical product specifications (GPS) X ray three dimensional size measuring machines Part 4: Evaluation of uncertainty in measurement (Chinese: GPS X 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 34874. 4 2025