Welded gwiwar hannu ana yin ta ne da lankwasa bututu kuma ana iya haɗa shi, don haka ana kiransa welded elbow, wanda ba yana nufin yana da walƙiya ba.A gaskiya ma, akasin haka, welded gwiwar hannu ana yin ta ne ta hanyar buga bututu madaidaiciya da lankwasawa.Idan aka yi la'akari da matsalolin tsarin, ana amfani da bututu mara nauyi gabaɗaya.Maimakon walda...
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