Shoot ƙofar - yafi shigar a ƙarshen ruwa drainage bututun don hana waje ruwa rushewa. Da kayan da aka raba zuwa bakin karfe ƙofar, karfe ƙofar, karfe ƙofar, hadaddun kayan ƙofar (gilashin karfe ƙofar) da sauran kayan.

Kuma aka rarraba ƙofar zuwa nau'ikan da yawa, bisa ga siffar bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun bututun Dangane da nau'i kuma rarraba zuwa m akwati irin harbi kofa, Flat panel irin harbi kofa, sleeve irin harbi kofa da sauransu

Wani nau'in bawul mai hanyar daya ne da aka shigar a filin fitarwa na bututun fitarwa da tashar famfo, lokacin da tafiyar ruwa ta fi fitarwar bututun fitarwa, kuma matsin lamba ya fi matsin lamba a cikin bututun, ƙofar ƙofar ta rufe ta atomatik don hana tafiyar ruwa ta zuba cikin bututun fitarwa. A halin yanzu, an rarraba ƙofar zuwa nau'in dakatarwa, ƙofar buɗewa guda ɗaya / ƙofar buɗewa biyu, nau'in ceton makamashi da sauransu.