Ua hoʻokumuʻiaʻo Wei Fang Wei Shi Xin Gas Equipment Co., Ltd. i Iulai 2003. Aia ia ma No.5111 Yingqian Street, Weifang National High-tech Development Zone, Shan Dong Province. Hoʻopili ka hui i kahi ʻāpana o 20000 square square a loaʻa kahi hale o 11,000 square square. He hui kūikawā ʻo ia i ka noiʻi a me ka hoʻomohala ʻana i ka hana ʻana o ke kaomi swing adsorption a me ka membrane separation nitrogen, oxygen a me ka hoʻoulu ʻana i ke kinoea, hoʻomaʻemaʻe a me nā mea hana ʻē aʻe.
Ua loaʻa i ka hui nā mea hana nitrogen a me ka oxygen i ka makemake o nā mea hoʻohana a puni ka honua me ka maikaʻi a me nā kumukūʻai hoʻokūkū. I loko o nā makahiki, ua kūʻai nui ʻia nā huahana ma nā ʻāina e like me ʻAmelika Hui Pū ʻIa, Russia, India, Pakistan, Bangladesh, Chile, Singapore, Egypt, Algeria, Tanzania, Brazil, Sudan, Djibouti, a ua loaʻa ka mahalo nui.