Fa'afeiloa'i i Shanghai Lianfeng Gas Co., Ltd., o se ta'ita'i fa'ameamea fa'ameamea, fa'atau oloa, ma falegaosimea e fa'avae i Saina. O la tatou fa'ase'e fa'atupu fa'amatu'u ose fa'amoemoega ma taugofie mo le gaosiga o le nitrogen i luga ole laiga, e ofoina atu le fa'aauauina pea o le fa'amama maualuga mo fa'aoga tau alamanuia eseese. O lo tatou fa'aosoina fa'aoso fa'ase'e fa'aaogaina le vavala'au maualuga po'o le PSA (Pressure Swing Adsorption) tekinolosi e vavae'ese ai le nitrogen mai le ea, tu'uina atu le tafe faifaipea o le nitrogen ma tulaga mama e o'o atu i le 99.999%. O le mamanu faaseʻe e faʻapipiʻi ma lelei, e faigofie ai ona faʻapipiʻi ma faʻagaoioia i nofoaga faʻapisinisi eseese, e aofia ai fale gaosi vailaʻau, meaʻai e teu ai meaʻai, ma mea tau eletise. I Shanghai Lianfeng Gas Co., Ltd., matou te tuuto atu i le tuʻuina atu ia matou tagata faʻatau oloa sili ona lelei o le gaosiga o le eletise e fetaui ma o latou manaʻoga faʻapitoa ma manaʻoga o tupe. O la matou 'au fa'ainisinia fa'apitoa ma fale gaosi fa'aonaponei fa'aonaponei e fa'amautinoaina o lo'o fausia a matou fa'ase'e fa'atosina o le nitrogen i tulaga maualuga o le lelei ma le fa'amaoni. Filifili Shanghai Lianfeng Gas Co., Ltd. e avea ma au paaga faʻalagolago mo fofo faʻatupuina o le nitrogen, ma iloa le eseesega e mafai e a matou oloa ona faia mo lau pisinisi.