NingBo ZhengXin(ZX) va'a mamafa Co., Ltd. o se taʻutaʻua gaosi oloa maualuga kasa kasa ma valve o loʻo i le Nu.1 JinHu East Road, HuangJiaBu Town, YuYao City, Saina, ma lona ofisa faʻatau i Shanghai, Saina. E sili atu i le 20 miliona faʻamaufaʻailoga faʻalagolago e faia e ZX ma tautua i le lalolagi atoa. Matou te ofoina atu i matou lava i le suʻesuʻega ma le atinaʻeina o paʻu ma valve talu mai le 2000, faʻamoemoe e tuʻuina atu oloa sili ona lelei mo meainu, scuba, fomaʻi, saogalemu afi ma pisinisi faʻapitoa.