Home / Standards / GB/T 3871.4-2025 GB/T 3871.4-2025 Active Agricultural tractors—Test procedures—Part 4: Rear three-point linkage lifting capacity 农业拖拉机 试验规程 第4部分:后置三点悬挂装置提升能力 Standard Type GBT ICS 65.060.10 CCS T 61 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