Home / Standards / GB/T 10421-2025 GB/T 10421-2025 Active Sintered metal friction materials—Determination of density 烧结金属摩擦材料 密度的测定 Standard Type GBT ICS 77.160 CCS H72 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A