Bututu Fittings yana taka rawa a cikin haɗin gwiwa, sarrafawa, canjin alkibla, abubuwan da ke gudana tare da rufewa da goyan baya.Carbon karfe bututu kayan aiki a halin yanzu mafi yadu amfani daya bututu kayayyakin.Babban kayan q235, 20 #, 35 #, 45 #, babban 16mn.Babban samfuran sun haɗa dacarbon karfe gwiwar hannu, carbon karfe flanges,carbon karfe te, carbon karfe, hudu-hanyar,carbon karfe bututu reducer(girman kai), carbon karfe shugaban (wuya).Yawanci aiwatar da ma'auni, gami da ma'aunin ƙasa, mizanin Amurka, ma'aunin Jafananci.

Ana kiran kayan aikin ƙarfe na matsa lamba.Ya danganta da fasahar sarrafa kayan aiki, an kasu kashi uku, wato butt class fittings (weld and weld two), socket wald da threaded pipe fittings, flanges da fittings.

Hanyoyin Tube na tsarin bututu, nau'in nau'i daban-daban, don haɗawa zuwa madaidaicin bututu ko sashin tube.Duk wani bututu bayan samfuran sarrafawa mai zurfi yakamata ya kasance cikin iyakokin kayan aikin bututu, wannan samfurin yana da halaye biyu na bututu da sassa na inji.

Gefe shine amfani da fenti azaman kayan aiki ko ƙarfe mai jure iskar shaka (misali, zinc, nickel da chromium) electroplating da za a tabbatar da su.Amma, kamar yadda kowa ya sani, tube a cikin Layer na waje kawai fim ne na bakin ciki.Da zarar Layer na kariya ya lalace, karfe mai zuwa ya fara tsatsa.Abubuwan kiyayewa gabaɗaya na memba na bututu sun dogara da zinc, nickel da chromium, amma kuma suna cikin ɗaya daga cikin ɓangaren ƙarfe saboda zinc, nickel da chromium, don haka hanyoyin kariya sun bambanta.