Fa'ailoaina o le PSA Nitrogen Gas Plant fa'aonaponei, na aumai ia te oe e Shanghai Lianfeng Gas Co., Ltd., o se ta'uta'ua ta'uta'ua, fa'atau oloa, ma le falegaosimea o masini kesi i Saina. O le matou PSA Nitrogen Gas Plant o se tali fa'atuatuaina ma taugofie mo le fa'atupuina o le kasa nitrogen maualuga i luga ole nofoaga. I le faʻaaogaina o le Pressure Swing Adsorption (PSA) tekinolosi, ua fuafuaina ai le gaosiga o le nitrogen gas e maua ai le nitrogen ma le mama e oʻo atu i le 99.999%, ma faʻafaigofie ai mo le tele o faʻalapotopotoga faʻapisinisi e aofia ai le afifiina o meaʻai, gaosiga eletise, ma le gaosiga o vailaʻau. I Shanghai Lianfeng Gas Co., Ltd., matou te tuuto atu i le tuʻuina atu o mea e sili atu ona lelei kesi e fetaui ma tulaga maualuga o alamanuia. O la matou PSA Nitrogen Gas Plant ua mamanuina mo le maualuga maualuga, ofoina atu se tau maualalo-i-unite o le kasa nitrogen gaosia. Faatasi ai ma le faʻapipiʻiina faigofie ma le itiiti o le tausiga o manaʻoga, o le matou nitrogen gas plant o se filifiliga sili lea mo pisinisi o loʻo vaʻavaʻai e faʻaleleia a latou gaioiga i le faʻalagolagoina ma faʻaauau pea le sapalai o le kasa nitrogen maualuga-mama. Fa'alagolago i le Shanghai Lianfeng Gas Co., Ltd. mo mea uma e mana'omia e le fale kesi nitrogen.