Dongguan Haocheng Metal Spring Co. Ltd. na faavaeina i le 2005, ituaiga uma o puna uʻamea saʻo, faʻailoga tagata gaosi oloa gaosi. Kamupani e aofia ai se vaega o le sili atu i le 10,000 sikuea mita, o le vaega o le laau o le sili atu i le 6,000 sikuea mita, ma sili atu nai lo le 100 Taiuani meafaigaluega saʻo gaosiga faʻaonaponei ma meafaigaluega suʻega, e pei o Taiwan CNC502 masini puna komepiuta, Taiwan CNc8cs masini puna komepiuta, lathes otometi ma Taiwan High-saosaoa lomitusi, uʻamea uʻamea Taiwan, masini tapping otometi...