GB/T 17642-2025 Chinese PDF (GB /T17642-2025)GB T 17642 2025_Chinese: Geosynthetics Geocomposites made of geononwoven and geomembrance (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 17642 2025
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