BT TECHNOLOGY INC GEOSYNTHETIC 2001a
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GEOTEXTILE THICKNESS
DESIGNED TO MEASURE THICKNESS OF GEOSYNTHETIC MATERIALS |
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ASPERITY HEIGHT
DESIGNED TO ASPERITY HEIGHT (PEAK TO VALLEY) OF TEXTURED GEOMEMBRANES |
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GEOMEMBRANE THICKNESS DEVICES
DESIGNED TO MEASURE THE CORE THICKNESS OF TEXTURED GEOMEMBRANES |
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