Building materials, namely, asphalt, pitch, bitumen, and compositions containing any of the aforesaid goods all for use in laying equestrian track for recreational or sporting purposes, racing, training or exercising horses and other animals; building materials, namely, synthetic surface material in the nature of a mixture of plastics, polyester, elasticized fibers, sand, hydrocarbon wax, rubber, and rubber granules for use in laying equestrian track for recreational or sporting purposes, rac...

Furnaces, calciners, preheaters, and coolers for use in the cement, lime, gypsum, ceramic, refractory, iron and steel, mining, and power industries

water treatment services, namely, monitoring the performance of industrial water purification systems

CHEMICALS ADDED TO WATER TREATMENT SYSTEMS TO AID IN DETECTING, VIA PHOTOMETRY, THE PRESENCE OF WATER TREATMENT AGENTS SUCH AS CORROSION INHIBITORS, SCALE INHIBITORS, DISPERSANTS, AND OXYGEN SCAVENGERS IN SAID SYSTEMS