Tianjin Pu Hui Science and Technology Development Co.,Ltd. is located at Jinnan District,Tianjin,China, and it produces PSA nitrogen generator,PSA oxygen generator,air compressor and air filter, which all these products belong to range of Air Sepeartion equipment,these products are used on Oil and Petrochemical,food storage,food packaging,chemicals,metallurgical,pharmaturial,glass,electronics,SMT,wastewater treatment,Hospital and so on,we have 3 items of talent in this item,we have rich experienced engineers for after-sales service.