Classification Information
plastic drainage tubing, sewer pipes, flue linings, drain tiles, and fittings therefor (namely, elbows, ts, ys and other shapes) and plasticizers for mortar
Nonmetallic Building Materialsplastic drainage tubing, sewer pipes, flue linings, drain tiles, and fittings therefor (namely, elbows, ts, ys and other shapes) and plasticizers for mortar
Nonmetallic Building Materials