Yuhuang Electronics Dongguan Co., Ltd, dịka ọkachamara n'ihe gbasara ihe mgbakwunye ahaziri ahazi, nke e hiwere na 1998, nke dị na Dongguan City, ebe a ma ama n'ụwa niile maka nhazi akụkụ ngwaike. Mmepụta ihe mgbakwunye kwekọrọ na GB, American Standard (ANSI), Germany Standard (DIN), Japanese Standard (JIS), International Standard (ISO), Ọzọkwa, ihe mgbakwunye ahaziri ahazi dabere na ihe ị chọrọ. Yuhuang nwere ihe karịrị ndị ọrụ nwere nkà 100, gụnyere ndị injinia ọkachamara 10 na ndị ahịa mba ụwa iri nwere ihe ọmụma. Anyị na-ebute ụzọ n'ọrụ ndị ahịa.