Home / Standards / GB/T 23440-2025 GB/T 23440-2025 Active Inorganic waterproof and leakage-preventing materials 无机防水堵漏材料 Standard Type GBT ICS 91.120.30 CCS Q17 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A