GB/T 45554-2025 Chinese PDF (GB /T45554-2025) GB/T 45650-2025 GB/T 20042

GB/T 20042

GB/T 45650-2025_Chinese: Air source heat pump packages with carbon dioxide as refrigerants (Chinese: 二氧化碳空气源热泵机组)

GB/T 44854-2024_Chinese: Requirements for equipment and management of energy measuring instruments in logistics service provider (Chinese: 物流企业能源计量器具配备和管理要求)

English versions: GB/T 45582-2025

scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement (Chinese: 工业、科学和医疗设备 射频骚扰特性 限值和测量方法)

GB/T 45554-2025 Chinese PDF (GB /T45554-2025) GB/T 45650-2025 GB/T 20042GB T 45554 2025_Chinese: Specification for pig performance testing (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45554 2025