GB/T 45471-2025 Chinese PDF (GB /T45471-2025)GB T 45471 2025_Chinese: Test method for mode III interlaminar fracture toughness of carbon fiber reinforced composite materials Edge crack torsion method (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45471 2025
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