兑水 发表于 2009-10-17 10:40:58

ASTM D 5494-1993 未保护和保护土木薄膜角锥穿孔强度的标准....

D5494-93(1999)e1 Standard Test Method for the Determination of Pyramid Puncture Resistance of Unprotected and Protected Geomembranes
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