Profile: D L H Industries, Inc. is involved in the manufacture of automotive plastic products. We offer injection molded & extruded thermoplastic components, washer system tubing assemblies, sunroof drain tube assemblies, vacuum & vent lines and fresh & foul air PCV assemblies. We have a tube extrusion plant, injection molding plant, tube forming plant, mold tool & die machine shop, distribution center and warehouse as well as three final assembly plants.