Official classification context
Industry overview This class comprises establishments that do not come under general piping work and are primarily engaged in installing water supply equipment (including well pumps), water drainage equipment, how water equi pment, fire -fighting equipment, flush WCs, kitchen equipment, wastewater & pollution treatment devices, pollution purification tanks, garbage treatment devices and other equipment work in buildings, factories, and various other facilities.
Major group context This Major group comprises establishments primarily engaged in direct contracts with the orderers for completing electric structures, telecommunication signal facilities, air -conditioning equipment, water supply -drainage with sanitary equipment, elevator systems, and other machinery and equipment, or the establishments engaged in comple ting similar work by self -construction (construction for the establishment itself) as well as those engaged in subcontracting installation work as a part of work for these machinery and equipment.