(2) The second and third letters of the model, DK, DC, DX, JD, DZ, JC and TX respectively represent the model codes of single-opening, symmetrical, crossing, symmetrical combination, diamond-shaped crossing and four-way armored turnout.
(3) The numbers 6, 7, 9 and 43 in the main parameters of the first paragraph respectively represent turnout gauge, 6=600, 7=700 and 9=900mm, and the numbers 15, 22, 30, 38 and 43 in the main parameters of the first paragraph respectively represent turnout rail type, kg/m. ..