Home / Standards / GB/T 25339-2025 GB/T 25339-2025 Upcoming Rail heavy-duty construction machinery—Track panel laying machine 铁路大型施工机械 轨排铺轨机 Standard Type GBT ICS 45.120 CCS S19 Status 即将实施 Issue Date 2025-12-02 Implementation 2026-07-01 Responsible Dept 国家铁路局 Drafting Unit N/A