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SEMCO CO., LTD.
| SEMCO CO., LTD. Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20120132232 | PIPING CLEANING NOZZLE AND PIPING CLEANIGN METHOD USING PIPING CLEANING NOZZLE - Provided are a piping cleaning nozzle which effectively prevents back flow of a cleaning agent poured into piping in a building to clean the inner wall of the piping and to exterminate noxious organisms, and a piping cleaning method using the piping cleaning nozzle. An expanding and contracting body ( | 05-31-2012 |