Engineering services, namely, engineering for the design of custom-engineered products, systems, equipment, machinery, and industrial automation related to rotary sealing devices, steam systems, expansion joints, doctor systems, roll and fabric cleaning devices to control fluid flow in industrial and commercial applications, stock preparation systems and equipment, debarkers, stranders, conveyors, vibratory equipment, and balers in the packaging, tissue, food, metals, recycled paper and paperboard, wood products, alternative fuels, bulk and discrete materials for secondary processing and transport in the aggregates, and waste management industries