Bakin bellowm hadin gwiwamadaukigalibi ana amfani da su don ɗaukar rawar jiki da hayaniyar famfo a mashigai da mashigar famfo. Muna kiran su haɗin haɗin famfo.

Musamman, samfuranmu sun kasu kashi biyu na tie sanda nau'in shockproof gidajen abinci da net cover type shockproof gidajen abinci, da kuma ƙulla sanda iri sun kasu zuwa waldi nau'in da gyaggyarawa nau'in.Wannan daya-yanki nau'i na iya tabbatar da tsabta na bututun, kuma flange ne. sanya daga carbon karfe. Irin wannan bututun tsaftacewa zai iya rage farashin.

Ƙwayoyin haɓakawa sun kasu kashi-kashi na haɓakawa na axial da haɗin haɓaka na gefe. Ana kuma kiran haɗin haɓaka haɓaka na gefe na Vientiane. Suna ɗaukar ƙaura ta hanyar kusurwar dama ta hanyar jujjuyawar bellow a ƙarshen duka. Yafi don tabbatar da amincin aiki na bututun, yana da ayyuka masu zuwa: ramawa da kuma shayar da nakasar thermal na axial, a kaikaice da angular na bututun; shayar da girgizar kayan aiki da rage tasirin girgiza kayan aiki akan bututun; shafe nakasar bututun da girgizar kasa da kasa ke haifarwa.