2023
|
P/S
|
Water supply installations, namely, faucets, water fountains, refrigerated dispensing units for d... |
|
P/S
|
Water supply installations; water purification
installations; water filtering apparatus; purific... |
2022
|
Invention
|
Polyamide composite reverse osmosis membrane and preparation method thereof.
The present inventi... |
|
Invention
|
Polyamide composite reverse osmosis membrane and preparation method thereof. The present inventio... |
2016
|
P/S
|
Water filtering apparatus; Water purification installations; Desalination plants; Water purifying... |
|
P/S
|
Lamps; oil lamps; solar furnaces; freezers; air filtering
installations; heat accumulators; heat... |
2015
|
P/S
|
Desalination units; Filters for drinking water; Purification installations for sewage; Sewage pur... |