Maryland Eastern Gas Hotline: 15,002,669,777 15,293,188,456, Gansu nitrogen colorless, odorless, non-corrosive, non-flammable, low temperature, is inactive and does not support combustion; atmospheric pressure, Lanzhou liquid nitrogen temperature -196 ℃; m can be expanded to 696 m3 21 ° C in pure nitrogen gas. Gansu liquid nitrogen is a colorless, odorless, cryogenic liquid under high pressure and gas volume at atmospheric pressure gasification expands 696.5 times. Lanzhou liquid nitrogen is nitrogen gas in liquid form is formed at a low temperature, below the temperature that would be formed if the nitrogen Gansu, if pressed, can be obtained at a higher temperature under normal atmospheric pressure. In industry, Lanzhou liquid nitrogen is derived from the air fractionation. After the first air purification, under pressure, cooling the environment and liquefied by the boiling point of the components in the different air be separated. Gansu compressed gas products are widely used metals, non-ferrous metal smelting, machinery, chemical, semiconductor, electronics, optoelectronics, research and other industries. Lanzhou compressed gas company adhering to the "punctual, efficient, standardized service, customer needs first" operating philosophy, has grown in strength, has formalized a large fleet. Gansu compressed gas varieties complete, production, packaging, storage, transportation capacity to meet the province around the large / small users, the demand for large / small projects. Lanzhou compressed gas company absorb modern scientific management concepts with adaptive air separation gas production engineering and technical security team, established a set of pre-sales service as one of the marketing management system. Gansu compressed gas company fully equipped modern facilities, a variety of cryogenic liquid tank four, cryogenic liquid filling gasification unit four, five cryogenic liquid transport tankers. Lanzhou compressed gas company to market-oriented, forge ahead, innovation, and always adhere to the "customer first, quality first" principle of service, construction of vertical sound marketing service system, timely and effective manner to provide our clients with quality products and services and win the support and reliance parties.