... or concrete backfill. Main Technical Indicators of Garage DrainsFeatures:1. Strong tensile strength, high elongation rate, and strong ... , vehicle, worker stepping, concrete pouring impact force, etc.Typical Application:1. Green Engineering: garage roof greening, roof garden, roof ... , railway subgrade, embankment and slope protection layer.Photo 1 The factory viewPhoto 2 The test equipmentPhoto 3 The ...