Home / Standards / GB/T 19387-2025 GB/T 19387-2025 Active Portable chain-saws—Chain brake performance test methods 便携式链锯 锯链制动器性能试验方法 Standard Type GBT ICS 65.060.80 CCS B 95 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 国家林草局 Drafting Unit N/A