Characteristic * Provide maximum business value * Molecular sieve filling and compacting, adopt the professional way to complete in a professional context, higher density, higher efficiency * Design optimization, process and structure of the system, to play the greatest potential, higher reliability * Special valve by one million times, frequent switching fault free,and stable operation of security system * Nitrogen can automatically record, easy to locate any work time ,work state * System design more reasonable, more secure, more reliable. * Automatic operation, the system, the whole process can be achieved unattended.