Beijing Huilong Co., Ltd (Originally is Beijing Chromatography Analytical Technology Research Institute) is specialized in researching, developing and selling the products of gas generator.

Products rang include:
HGN-High Purity Nitrogen Gas Generator, HGH-Hydrogen Gas Generator, HGA-the Air source for Chromatography, HGT-Nitrogen\Hydrogen and Air Integral Gas Generator, HNA- Nitrogen and Air Integral Gas Generator, HA- Hydrogen and Air Integral Gas Generator, HJ Gas Purifier, etc.

We can offer good service in selling, installing and debugging gas chromatography, and provide chromatography consumables products for our customers.