Gold APP Instruments (www.jinaipu.com), expert in surface area and porosimetry analyzer, is a high technology and originality corporation located in Zhongguancun, Beijing High-tech Industry Zone, where gathered numerous national famous universities and research laboratories. Gold APP analyzers cover F-Sorb X400CE series base on flow nitrogen adsorption and V-Sorb X800 series rely on static volumetric nitrogen adsorption principle for surface area and pore size analysis. Further, an extremely sophisticated high pressure and high temperture gas sorption H-Sorb 2600 and the revolutionary gas pycnometer helium true density analyzer G-DenPyc 2900 left other components far behind.