Soo bandhigida Tiknoolajiyada Vpsa, tignoolajiyada kala soocida gaaska jeexan ee ay soo saartay Shanghai Lianfeng Gas Co., Ltd. Sida soo saaraha hormuudka ah, alaab-qeybiyaha, iyo warshadaha Shiinaha, waxaan ku hanweynahay inaan bixinno xalkan cusub ee kala soocida oksijiinta iyo nitrogen ee hawada. Tiknoolajiyada Vpsa waxay shaqaaleysiisaa habka xayaysiisyada vacuum lulid si ay si hufan u nadiifiso oo ay u kala saarto gaasaska, taasoo keenta ogsijiin saafi ah oo nadiif ah iyo nitrogen oo loogu talagalay codsiyo warshadeed oo ballaaran. Farsamadayada Vpsa waxaa loogu talagalay inay buuxiso baahiyaha gaarka ah ee warshado kala duwan, oo ay ku jiraan daryeelka caafimaadka, biraha samaynta, farsamaynta kiimikada, iyo in ka badan. Iyada oo ay ka go'an tahay tayada iyo kalsoonida, Shanghai Lianfeng Gas Co., Ltd. waxay hubisaa in Vpsa Technology ay buuxiso heerarka ugu sarreeya ee waxqabadka iyo badbaadada. Haddii aad u baahan tahay ilo lagu kalsoonaan karo oo ogsijiin ama nitrogen ah hawlahaaga, Tignoolajiyadayada Vpsa waxay ku siinaysaa xal kharash-ku-ool ah oo waara. Ku kalsoonow Shanghai Lianfeng Gas Co., Ltd. sidii lammaanahaaga tignoolajiyada kala saarista gaaska tayada sare leh, oo khibrad faa'iidooyinka Vpsa Technology ee ganacsigaaga.