Low da matsakaici matsa lambatukunyar jirgiyana amfani da ingot na ƙarfe ko ƙwanƙwaran bututu zuwa raɗaɗɗen capillary, sannan a buga bugun mai zafi, birgima ko sanyi.
Bisa kididdigar da ba ta cika ba, kamfanonin samar da bututun na kasar Sin sun kai kusan 240 fiye da na'urar bututun karafa da ba ta dace ba, ya kai fiye da nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan tan miliyan 450.An gani daga caliber <φ76, lissafin 35% <φ159-650, lissafin 25%.Daga nau'ikan maƙasudin gabaɗaya na ton miliyan 1.9, suna lissafin 54%;bututun mai 760,000 ton, wanda ya kai kashi 5.7%;na'ura mai aiki da karfin ruwa prop, madaidaicin tube 15 miliyan ton, lissafin 4.3%;Bakin karfe bututu, tube bearings, mota bututu don jimlar 50 000 ton, lissafin 1.4%.

Low da matsakaici matsa lamba tukunyar jirgi bututu zartarwa Standard: GB3087-1999 low da matsakaici matsa lamba tukunyar jirgi bututun ƙarfe.

Low da matsakaici matsa lamba tukunyar jirgi bututu da ake amfani da su haifar da dama Tsarin da low matsa lamba tukunyar jirgi superheated tururi nadi bututu da locomotive tukunyar jirgi superheated tururi bututu, opium bututu, kananan bututu da baka bulo ayyuka na high quality carbon tsarin karfe zafi birgima da sanyi ja. (birgima) bututu mara nauyi.An fi amfani dashi a cikin tukunyar jirgi na masana'antu da tukunyar jirgi a cikin isar da ruwa mara ƙarfi a cikin bututun.Wakilin kayan 10, 20 karfe.