Home / Standards / GB/T 17642-2025 GB/T 17642-2025 Active Geosynthetics—Geocomposites made of geononwoven and geomembrance 土工合成材料 非织造布复合土工膜 Standard Type GBT ICS 59.080.70 CCS W59 Status 现行 Issue Date 2025-04-25 Implementation 2025-11-01 Responsible Dept 中国纺织工业联合会 Drafting Unit N/A