There is no institution specializing in identifying meteorites in China. You can go to the Jewelry and Jade Identification Center of China Geo University or the Institute of Geology of Chinese Academy of Sciences. Meteorite identification is generally nothing more than density measurement, spectral analysis, measurement of the structure of things and so on. It is best to do charcoal 14 identification and look at the age. Finally, through comprehensive judgment, the straight line can be identified more accurately. I hope I can help you.