additive for mortar, masonry, cement, and concrete

chemical titrators, chemical analyzers, and chemical process samplers; parts therefor; namely, pumps, valves, seals, tubing, electrodes, filters, and stir bars; computer processing units, computer cables, computer power supplies, and computer printers

Additives for use in the manufacture of masonry, mortar, cement and concrete; [and admixtures for use in connection therewith]