Ado otal
Adireshin aikin: Shanghai, China
Abu: Brass, jan karfe rectangular tube, jan karfe farantin, jan profile
Gabatarwar Aikin: Kayan adon otal, kayan ado na karfe da zanen shimfidar wuri
Iyakar kasuwanci: ƙofofin otal, kayan ado na otal, sifofi na musamman, grille na gallery, rumfunan shimfidar wuri, Jira.
Kayan jan ƙarfe yana buƙatar aiki mai hankali sosai daga niƙa na farko zuwa samfurin da aka gama, da kuma daidaita launi a mataki na gaba.Daidai ne saboda irin wannan aikin mai mahimmanci cewa kayan ado zai bayyana mai daraja.
A halin yanzu, bukatun kowa na kayan ado yana karuwa kuma yana karuwa, kuma masana'antun suna ci gaba da haɓaka sababbin kayan tagulla bisa ga bukatun abokin ciniki.
Nau'o'in kayan tagulla A halin yanzu, manyan nau'ikan tagulla sune kamar haka: Kayan tagulla iri biyar ne: tagulla, tagulla, kofi, jan jan karfe, gami da jan karfe, da sauransu.
Brass: Yana da halaye na babu tsatsa, babu lalata, da kuma filastik mai kyau.
Bronze: juriya mai ƙarfi mai ƙarfi.
Cupronickel: Layin jan ƙarfe-nickel gami yana da manyan kaddarorin inji.
Jan jan karfe: Yana da kyakyawan kyakykyawan tafiyar da wutar lantarki, karfin zafin jiki, juriya na lalata, ductility da babban filastik, kuma ana daukarsa a matsayin mafi kyawun kayan kofa na tagulla.
Copper alloy: wani alloy hada da tsantsa jan karfe a matsayin matrix da daya ko da yawa wasu abubuwa kara.