Hakanan aka sani da aluminum size kai, shi ne daya daga cikin sinadarai bututun kayan aiki, don haɗin biyu daban-daban bututun diamita. Aluminum heterogeneous bututun kuma aka raba zuwa aluminum concentric girman kai da aluminum eccentric girman kai.
Aluminum diameter bututu ne wani nau'i na bututun da aka yi amfani da shi a bututun canji, yawanci amfani da tsarin da aka tsara ne shrinking matsa lamba, fadada diameter matsa lamba ko shrinking da fadada diameter matsa lamba, da wasu bayanai na diameter bututu ma za a iya amfani da stamping da aka tsara.
Aluminum aikace-aikace:
1, lokacin da kwararar ruwa a cikin bututun yana da canji, kamar haɓaka ko rage, lokacin da buƙatun gudun gudun ba su da canji, duk suna buƙatar amfani da bututun diameter.
2, a famfo, don hana tururi lalacewa, bukatar amfani da diameter bututu.
3, tare da ma'auni kamar ma'auni na kwarara, daidaitawa bawul na haɗin gwiwa, don yin aiki tare da ma'auni na haɗin gwiwa, ana buƙatar amfani da bututun diamita.