bututu mai zuwa hudu
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Masana'antar Karfe Hudu Bututu
Spool wani nau'in bututu ne da ake amfani da shi a reshen bututun.An raba spool zuwa diamita daidai da diamita daban-daban.Ƙarshen madaidaicin spools diamita duk girman iri ɗaya ne;Girman bututun bututun reshe ya fi na babban bututu.Don yin amfani da bututu maras sumul don kera spools, a halin yanzu akwai matakai guda biyu da ake amfani da su: bulging na ruwa da latsa mai zafi.Ingancin yana da yawa;an ƙara kaurin bango na babban bututu da kafaɗa na spool.Saboda manyan ton na kayan aiki da ake buƙata don tsarin bulging na hydraulic na spool maras kyau, abubuwan da ake amfani da su sune waɗanda ke da ƙarancin ƙarfin aikin sanyi.
