Ƙofofin gilashin masu hana wuta suna da ingantacciyar kofofin gilashi masu aminci. Taurin gilashin hana wuta shine sau 6 ~ 12 na gilashin iyo kuma sau 2 ~ 3 na gilashin zafi. Ƙofofin gilashi masu tsayayya da wuta suna da tsayayyar wuta kuma suna iya ƙonewa a cikin harshen wuta; suna da tsayayyar yanayi kuma suna iya jure wa rana da ruwan sama.

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