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Question:

What is national standard of geomembrane?

nan

Answer:

Geomembrane national standards have not requirements for construction loss. Do you want to ask lapping? Normal lapping is 15-20CM.
Polyethylene geomembrane new national standard GB / T17643-2011. The new standard increases single rough geomembrane and double rough geomembrane and delete EVA geomembrane.

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