Kamfanin Dongguan Enuo mold Co., Ltd wani reshe ne na Hong Kong BHD Group, babban kasuwancin shine kera mold na allura da kuma ƙera allura. Bugu da ƙari, mold na Enuo shi ma masana'antar OEM ce da ke aiki a fannin duba kayan aiki/gauge R&D, ƙera Die Casting, injinan CNC, gwajin da kuma haɗa samfuran Prototype, feshi da haɗa sassa.
Simintin ƙarfe wani tsari ne na simintin ƙarfe wanda ake siffanta shi da tilasta ƙarfe mai narkewa a ƙarƙashin matsin lamba mai yawa zuwa cikin ramin mold. Ana ƙirƙirar ramin mold ta amfani da ma'aunin ƙarfe guda biyu masu tauri waɗanda aka ƙera su zuwa siffarsu kuma suna aiki kamar yadda aka yi da ma'aunin allura yayin aikin. Yawancin simintin mutu ana yin su ne daga ƙarfe marasa ƙarfe, musamman zinc, jan ƙarfe, aluminum, magnesium, gubar, pewter, da ƙarfe mai tushen tin. Dangane da nau'in ƙarfe da ake siffantawa, ana amfani da injin ɗakin zafi ko sanyi.
Kayan aikin siminti da kuma ƙarfe suna wakiltar babban kuɗin jari kuma wannan yana iyakance aikin zuwa samar da kayayyaki masu yawa. Kera sassan ta amfani da simintin siminti abu ne mai sauƙi, wanda ya ƙunshi manyan matakai huɗu kawai, wanda ke sa farashin da aka ƙara a kowane abu ya yi ƙasa.
An yarda cewa mazaunan farko na Arewacin Amurka sun yi ƙaura daga Siberia ta hanyar gadar ƙasa ta Bering kuma sun isa aƙalla shekaru 12,000 da suka wuce; duk da haka, ƙarin shaidu suna nuna isowa da wuri. Bayan sun ketare gadar ƙasa, Amurkawa na farko sun ƙaura zuwa kudu tare da gabar tekun Pacific kuma ta cikin wata hanyar da ba ta da ƙanƙara tsakanin kankara ta Cordilleran da Laurentide. Al'adar Clovis ta bayyana a kusan 11,000 kafin haihuwar Annabi Isa, kuma ana ɗaukarta a matsayin kakanni na yawancin al'adun asali na Amurka na baya-bayan nan.
