The company is selling U.S. SPX HANKISON (compressed air purification technology, the world's leading manufacturers of industrial 500) air purification products and U.S. companies PRISM membrane dryers and membrane nitrogen plant now reached nine categories of product categories, 1000 multiple kinds of models, covering petrochemicals \ chemical \ Ferrous Metallurgy \ machinery \ power \ e \ automakers \ ship \ cement \ paper \ light \ medicine \ food packaging industry customers for high-end use compressed gas purification requirements.