back flow valve
 

* 1.GERİ AKIş VANASI

2.geri akış vanası

English Related Words* a face like the back of a bus

* admission valve

* admission valve box

* air brake control valve

* air brake valve

* air flow

* air suction valve

* air valve

* all rivers flow to the sea

* angle of flow

* annular flow

* annular valve

* answer back

* answered back

* answering back