green roof drain board, green roof drain board
High Quality HDPE Green Roof Drainage Board LY10. US 2.03-3.30 Square Meter. 3200.0 Square Meters ... is a kind of high surface opening rate and internal porosity seepage drainage geosynthetic materials. It is using the polyolefin polymer resin formula raw material by extrusion, hot glue, molding shapes and made of silk air Honeycomb mesh ...
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