Home / Standards / GB/T 21526-2025 GB/T 21526-2025 Active Structural adhesives—Directives for the surface preparation of metals and plastics prior to adhesive bonding 结构胶粘剂 粘接前金属和塑料表面处理导则 Standard Type GBT ICS 83.180 CCS G38 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A