Dongguan Enuo mold Co., Ltd ndi gulu laling'ono la Hong Kong BHD Gulu, kapangidwe ka nkhungu za pulasitiki ndi kupanga ndiye bizinesi yawo yayikulu.Komanso, mbali zitsulo CNC Machining, mankhwala prototype R&D, anayendera fixture / Gauge R&D, pulasitiki zopangidwa akamaumba, kupopera mbewu mankhwalawa ndi msonkhano komanso kuchita nawo.
Die casting ndi njira yoponyera zitsulo yomwe imadziwika ndi kukakamiza zitsulo zosungunuka pansi pa kuthamanga kwambiri mu nkhungu.Mphepete mwa nkhungu imapangidwa pogwiritsa ntchito zida ziwiri zolimba zachitsulo zomwe zimapangidwira kuti zipangidwe ndikugwira ntchito mofanana ndi nkhungu ya jekeseni panthawiyi.Zinthu zambiri zakufa zimapangidwa kuchokera ku zitsulo zopanda chitsulo, makamaka zinki, mkuwa, aluminiyumu, magnesium, lead, pewter, ndi malata.Malingana ndi mtundu wazitsulo zomwe zimaponyedwa, makina otentha kapena ozizira amagwiritsidwa ntchito.
Zida zoponyera ndi zitsulo zimafa zimayimira ndalama zazikuluzikulu ndipo izi zimapangitsa kuti ntchitoyi ikhale yochuluka kwambiri.Kupanga magawo pogwiritsa ntchito die casting ndikosavuta, kumangotengera njira zinayi zokha, zomwe zimapangitsa kuti mtengo wowonjezera pa chinthucho ukhale wotsika.
Zavomerezedwa mofala kuti anthu oyambirira okhala ku North America anasamuka ku Siberia kudzera pa mlatho wa pamtunda wa Bering ndipo anafika zaka zosachepera 12,000 zapitazo;komabe, umboni wowonjezereka ukusonyeza kuti kufika msanga.Atawoloka mlatho wa pamtunda, anthu oyambirira a ku America anasamukira kum'mwera m'mphepete mwa nyanja ya Pacific ndikudutsa mkatikati mwa msewu wopanda madzi oundana pakati pa madzi oundana a Cordilleran ndi Laurentide.Chikhalidwe cha a Clovis chidawoneka cha m'ma 11,000 BC, ndipo chimawerengedwa kuti ndi kholo la zikhalidwe zambiri zaku America.
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