Home / Standards / GB 16776-2025 GB 16776-2025 Active Structural silicone sealants for building 建筑用硅酮结构密封胶 Standard Type GB ICS 91.100.50 CCS Q24 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 工业和信息化部 Drafting Unit N/A