What types of bullet trains are there, such as CRH2 and CRH5?

CRH stands for English abbreviation, full name of China Railway Expressway, which means "China Railway Expressway" in Chinese. It is the brand name established by China Ministry of Railways for China's high-speed railway system. CRH 1 and CRH5 are different types of high-speed rail in China.

There are 2 1 trains of CRH EMUs operated by China Railway, including CRH 1, CRH2, CRH3, CRH5, CRH6, CRH380a (L), CRH380b (L), CRH380C (L), CRH380d, etc.

CRH 1- is produced by Qingdao Sifang-Bombardier Railway Transportation Equipment Co., Ltd. (BST), a joint venture between China CSR Sifang Locomotive & Rolling Stock Co., Ltd. and Canadian Bombardier Company.

The full name of CRH5 EMU is Harmony CRH5 EMU. It is one of CRH series high-speed EMUs ordered by the Ministry of Railways of People's Republic of China (PRC) and China from Alstom and CNR Changchun Railway Co., Ltd. for the sixth speed increase of China Railway.