1. Shorten starting time
2.  Valve of purifier and rectification column adopts stainless steel or copper material, no rust, clean & beautiful  appearance
3. The fractionating column has a very good cooling retention effect.  the insulation in the fractionator is the best, no cooling leak, no gas leak, long life, during the long-term running.
4.  Reach 99.999% high purity nitrogen standard;
5.  All unit machines adopt the advanced technology, so reduce power consumption greatly, save electricity fee.