Bawul ɗin Ƙofar Ƙarfe
Bayani:
Bawul ɗin bawul ɗin bawul ɗin hanya ɗaya ne da aka sanya a mashigar bututun magudanar ruwa a dam ɗin kogin. A ƙarshen bututun magudanar ruwa, lokacin da magudanar ruwa a sama ya fi ƙarfin matsewar ruwan kogin, bawul ɗin flap zai buɗe. A gefe guda, diski ɗin bawul ɗin zai rufe kai tsaye don hana kogin ruwa zubowa cikin bututun magudanar ruwa.
Aikace-aikace:
Ya dace da ruwan kogi, ruwan teku, ɗan ƙasa da najasar masana'antu da dai sauransu.
Ya dace da ruwan kogi, ruwan teku, ɗan ƙasa da najasar masana'antu da dai sauransu.
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