GB/T 43081-2023 Chinese PDF (GB/T43081-2023) GB/T 38403.3-2025 686-2024_Chinese: Electricity metering data exchange

686-2024_Chinese: Electricity metering data exchange - The DLMS/COSEM suite - Part 86: High speed PLC ISO/IEC 12139-1 profile for neighbourhood networks (Chinese: 电测量数据交换 DLMS/COSEM组件 第86部分：社区网络高速PLC ISO/IEC 12139-1配置)

English versions: GB/T 45453-2025

GB/T 45656-2025_Chinese: Specification for the usability classification of second-hand electronic products (Chinese: 二手电子产品可用程度分级规范)

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)

31-2025_Chinese: National food safety standard - Food contact materials and products - Determination of residual and migration of vinyl chloride

GB/T 43081-2023 Chinese PDF (GB/T43081-2023) GB/T 38403.3-2025 686-2024_Chinese: Electricity metering data exchangeGB T 43081 2023_Chinese: Lamps and light sources for road vehicles Dimensional, electrical and luminous requirements (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 43081 2023