6
Metal chains, metal chain wheels, metal sliding latch bars, and metal guide bars, all of the foregoing for use with water management devices
11
Metal and non-metal bearings all for use with water and sewage technology devices, namely, water purification devices for waste water and sewage, water filtering units for industrial use, chemical sterilization units, reverse osmosis filtration units, and thickening and dewatering machines that treat water, industrial effluent and sewage; Devices for water management and water and sewage treatment, namely, water filtering devices, namely, water purification devices for waste water and sewage; Water filtering units for industrial use; Thickening and dewatering machines for use in treatment of liquids including water, industrial effluent and sewage
20
Non-metal chains, non-metal chain wheels, non-metal sliding latch bars, and non-metal guide bars, all of the foregoing for use with water management devices