Conventional turnout can be classified in two category 50kg/m and 60kg/m by steel.For instance with 50AT-12 50AT-12 simple turnout, of which switch rail is manufactured by AT switch rail, with a length of 37907mm, front length of 16853mm, rear length of 21054mm, theoretical passing speed ≤120km/h for main line, and ≤50km/h for branch line, radius of lead curve 350000mm,length of switch rail ...