Refractory materials, prefabricated elements in refractory materials, namely, plates, blocks, bricks, rubble, cement, grouts, pises, pipes and ducts, gutters, channels; refractory materials in pulverulent and granulous form

medical services including conducting physicals and drug screening

Chalkboards; Copier paper; Desk sets; Desk stands and holders for pens, pencils, and ink; Easels; Napkin paper; Printed business cards; Printed greeting cards; Printed note books; Stationery; Trash bags

Non-metal rigid pipes; Rigid plastic pipes

Non-metal rigid pipes; Rigid plastic pipes