Akwai nau'ikan bakin karfe da yawa, kuma bambancin farashin ma yana da girma. Daga mahangar hanyoyin samarwa, akwai nau'ikan faranti, nau'ikan simintin gyare-gyare, da nau'ikan ƙirƙira. Gabaɗaya, nau'ikan faranti suna da arha, saboda yawancin faranti na bakin karfe ana yin ta da yawa, kuma farashin ya ragu. Farashin simintin gyare-gyare ya bambanta dangane da sarkar tsarin. Ana sarrafa kayan jujjuya ne bisa ga bakin karfe, don haka farashin ya fi na talakawan simintin ƙarfe.

Bakin karfe Thimbles yawanci ana amfani da su a ginin ginshiki don kare bututu ko zoben ƙarfe waɗanda ke sauƙaƙe shigar bututu.

Rarraba casing: m casing, sassauƙa da ruwa mai hana ruwa caling, karfe tube casing, da karfe casing.