What are the switch manufacturers?

At present, there are mainly five units in the railway turnout industry: China Railway Baoqiao Group (in Baoji, Shaanxi), China Railway Bridge Group (in Shanhaiguan, Hebei), Railway Construction Heavy Industry Turnout Branch (in Zhuzhou, Hubei), New Railway Deao (Sino-German joint venture in Shanhaiguan) and Tangshan China Railway Hengtong Turnout Co., Ltd. (Tangshan). Technically, Baoqiao and Qiao Shan started earlier, and they are the two leading companies in the railway turnout industry. The other two were newly built in 2006 and are rising stars. Tangshan China Railway Hengtong Turnout was built in 2009. Although it started late, its equipment and technology are advanced. These five enterprises now have the same processing capacity in the field of turnout manufacturing, but the advantages of the two old enterprises are more obvious. Generally speaking, they have their own characteristics and strengths.