Shanghai Lianfeng Gas Co., Ltd bụ onye na-emepụta ihe, onye na-ebubata ya, na ụlọ ọrụ mmepụta ihe nke Vpsa Oxygen Plant Process na China. Emebere usoro ihe ọkụkụ nke Vpsa oxygen iji kewapụ oxygen na ikuku nke ọma site na iji usoro Vacuum Pressure Swing Adsorption (VPSA). Nkà na ụzụ a na-egbu egbu na-enye ohere maka ịmepụta ikuku oxygen dị ọcha maka ọtụtụ ngwa ọrụ mmepụta ihe. Usoro ihe ọkụkụ nke Vpsa Oxygen anyị bụ nke a pụrụ ịdabere na ya, dị ọnụ ahịa ma dị mfe iji rụọ ọrụ, na-eme ka ọ bụrụ ezigbo nhọrọ maka ụlọ ọrụ na-achọ ịmepụta oxygen nke ha. Site n'ịgbasi ike na ịdị mma na arụmọrụ, Shanghai Lianfeng Gas Co., Ltd. na-eme ka o doo anya na Vpsa Oxygen Plant Process na-ezute ụkpụrụ ụlọ ọrụ kachasị elu. Ma ị nọ na ngalaba ahụike, gburugburu ebe obibi, ma ọ bụ mmepụta ihe, Usoro Osisi Oxygen nke Vpsa nwere ike mezuo mkpa mmepụta oxygen gị. Tụkwasị Shanghai Lianfeng Gas Co., Ltd. iji nye gị usoro Vpsa Oxygen Plant nke kachasị elu nke na-enye oxygen na-agbanwe agbanwe na nke dị elu maka ọrụ gị.