| 333310 |
Washing machines, laundry (except household-type), manufacturing |
| 333310 |
Water heaters (except boilers), commercial-type, manufacturing |
| 333310 |
Water purification equipment manufacturing |
| 333310 |
Water softening equipment manufacturing |
| 333310 |
Water treatment equipment manufacturing |
| 333310 |
Word processing equipment, dedicated, manufacturing |
| 333413 |
Air purification equipment, stationary, manufacturing |
| 333413 |
Air scrubbing systems manufacturing |
| 333413 |
Air washers (i.e., air scrubbers) manufacturing |
| 333413 |
Aircurtains manufacturing |