Electrical insulating materials; Extruded PVC product used to produce frames, sashes and accessories for use in the manufacture of windows and doors; Heat shrink nylon tubing for covering electrical wire and nylon grommets; Insulating sleeves for power lines; Insulating sleeves for water heaters; Insulators for electric cables; Non-metallic fittings for pipes; Plastic tubes for protecting electrical wires, milking machines; Thermoplastic and foamed plastic sections for use in the manufacture ...