Hangzhou Oxygen Plant Group Co.,Ltd. manufactures and sells air separation equipment and parts, cryogenic and petrochemical equipment, and other gas products in China and internationally. It operates through Machinery Manufacturing, Gas Sales, and EPC segments. The company offers high-purity gas, rare gas, new energy gas, mixed gas, electronic special gas, electronic bulk, medical gas, and excimer laser gas; medical detection mixture, energy gas liquid hydrogen, and carbon; and oxygen, nitrogen, argon, neon, helium, krypton, xenon, carbon dioxide, and hydrogen.