Home / Standards / GB/T 2476-2025 GB/T 2476-2025 Active Conventional abrasive—Symbols 普通磨料 代号 Standard Type GBT ICS 25.100.70 CCS J 43 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