Home / Standards / GB/T 28857-2025 GB/T 28857-2025 Active Differential transformer displacement transducer 差动变压器式位移传感器 Standard Type GBT ICS 17.040 CCS N12 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A