Hangzhou HANGZHOU NUZHUO TECHNOLOGY GROUP CO.,LTD, has been committed to the field of process control, integrating R&D, production and sales, the products are widely used in petrochemical, electric power, metallurgy, medical, energy and other fields. The company supply two categories of products with 1 year warranty. Main products are air separation devices, including pressure swing adsorption(PSA) technology oxygen/nitrogen generator, Vacuum Pressure Swing Adsorption (VPSA) oxygen purification machine…