Hangzhou Nuzhuo Technology Group Co., Ltd. has three subsidiaries: Hangzhou Kaihe Air Separation Equipment Co., Ltd., Hangzhou Azber Technology Co., Ltd., and Guodi Technology (Hangzhou) Co., Ltd.. The group company is specialized in the design and manufacture of cryogenic air separation units, VPSA oxygen generator, compressed air purification equipment, PSA nitrogen generator, PSA oxygen generator, oil-free gas booster, electric and pneumatic intelligent control valves, Temperature Control valve, Shut-off valve manufacturer. The product structure is matched up and down, one-stop service. The company has more than 14,000 square meters of modern standard workshops and advanced product testing devices. The company always adheres to the business philosophy of "integrity, cooperation, and win-win", takes the development path of technology, diversification,scale, and develops toward high-tech industrialization. The company has passed the ISO9001 quality system certification and won the "contract-honoring and trustworthy Unit" and the company are listed as the key enterprise of technological innovation in Zhejiang Province's high-tech industry.