Building materials not of metal, namely, concrete, cement, asphalt, pipe fittings comprised primarily of plastic; building materials not of metal for building weirs, namely, concrete, cement, asphalt, pipe fittings comprised primarily of plastic; gates not of metal; spill gates not of metal; sluice gates not of metal; building materials not of metal, namely, containers not of metal for filling with water to open spillway weir gates; non-metallic drainage pipes; non-metallic hazard warning bar...

Building materials not of metal, namely, concrete, cement, asphalt, pipe fittings comprised primarily of plastic; building materials not of metal for building weirs, namely, concrete, cement, asphalt, pipe fittings comprised primarily of plastic; gates not of metal; spill gates not of metal; sluice gates not of metal; building materials not of metal, namely, containers not of metal for filling with water to open spillway weir gates; non-metallic drainage pipes; non-metallic hazard warning bar...