Air Products (NYSE:APD) is a world-leading Industrial Gases company celebrating 75 years of operation. The company's core Industrial Gases business provides atmospheric and process gases and related equipment to manufacturing markets, including refining and petrochemical, metals, electronics, and food and beverage. Air products is also the world's leading supplier of liquefied natural gas process technology and equipment. The compnay's materials Technologies business serves the semiconductor, polyurethanes, cleaning and coatings, and adhesives industries.LYJN was founded in July 2005, located in Tianjin Huayuan High-tech Industrial Zone, specialized engaged in the gas industry equipment. We are National high and new technology enterprise.With strong technical force, LYJN engaged in the R and D of gas equipment such as PSA Nitrogen Generator,VPSA Oxygen Generator, Membrane Nitrogen separation Generator , Controlled Atmosphere(CA) Equipment for Fruit and Vegetables, meantime we also provide lifting equipment.LYJN capital increased to 6 million yuan in 2012, in October 2014, LYJN logged on to the New third board, and capital increase to 8.6million yuan. Stock name: LIYUANJIENENG Stock code: 831736With proprietary technology, LYJN have many patent applied to our energy-saving gas equipment, which can make the product more energy saving, compare with domestic system we can energy saving about 6-8% power, at the same time we use the activated carbon in addition to oil, fundamentally solves the nitrogen system attenuation caused by oil molecular sieve poisoning.