NingBo ZhengXin (ZX) ubwato bwingutu Co, Ltd.ni uruganda rukomeye rukora silindiri ya gaze nini na valve biri muri No1 JinHu Umuhanda wiburasirazuba, Umujyi wa HuangJiaBu, Umujyi wa YuYao, mubushinwa, hamwe n’ibiro byayo bigurisha i Shanghai, mu Bushinwa.Amashanyarazi arenga miliyoni 20 yizewe akorwa na ZX kandi muri serivisi kwisi yose.Twitanze mubushakashatsi no guteza imbere silinderi na valve kuva 2000, tugamije gutanga ibicuruzwa byiza byokunywa, scuba, ubuvuzi, umutekano wumuriro ninganda zidasanzwe.