宇艺斋
宇北(上海)文化艺术品有限公司

BeijingZijingshiFineChemicalTechnologyCo.Ltd.(ZJS)wasfoundedin1999,mainlyengagedinengineeringprojects,suchascarbondioxidesuper-criticalextraction,environmentalprotection,sulfonationbygaseousSO3(sulfurtrioxide),surfactants,andotherfieldssuchastechnologydevelopment,technologytransfer,technicalconsultation,engineeringdesign,technicalservices.