1.Timatengera ma archway omwe amayimira malo odzigudubuza, amphamvu kwambiri komanso okhazikika kuposa ena ogulitsa ku China.
2.Ma gearbox a munthu aliyense pa archway rollers akhazikitsidwa, kutsimikizira kulondola kwa mbiriyo.
3.Makina onse a thupi ndi zigawo zake zimazimitsidwa, ndi kuuma kwakukulu (HRC58-62) ndi kukana kuvala, pamene ena ogulitsa amangokhala ndi zitsulo zonyezimira.
4.Zinthu zodzigudubuza ndi American D2 ndi D3 miyezo, yokhala ndi moyo wautali wautumiki komanso mtengo wotsika wokonza.
5.Professional Germany roller design software-Copra.
6.Makina aatali, makina athu onse amatha kugwiritsidwa ntchito mokhazikika kwa zaka zoposa 10-15, pamene makina ena ang'onoang'ono ndi otsika kwambiri angagwiritsidwe ntchito kwa zaka 1-2.