The high manganese steel fork center is the key part of the turnout, and its quality plays a key role in the whole group of turnouts.
High manganese steel frog is the most commonly used turnout form.
The main drawing numbers are: manganese steel frog of 43-6 single turnout (drawing No. mark 3 4073) drawing number is mark 3 4090-3, manganese steel frog of 43-7 single turnout (drawing No. mark 3 4076) drawing number is mark 3 4091-3, manganese steel frog of 43-9 single turnout (drawing No. special line TB399-75) drawing number is TB1161-010,
The drawing number of manganese steel frog for 50-6 single turnout (drawing No. mark 3 4079) is mark 3 4093-3, the drawing number of manganese steel frog for 50-7 single turnout (drawing No. mark 3 4082) is mark 3 4092-3, the drawing number of manganese steel frog for 50-9 single turnout (TB399-75) is TB1164-010, and the drawing number of manganese steel frog for 50-9 single turnout (special line 4141) is special line 4142-6. The drawing number of manganese steel frog for 50-12 single turnout is TB1165-010,
The drawing number of manganese steel frog for 60-7 single turnout (drawing number: special line 9879) is special line 9881, and the drawing number of manganese steel frog for 60-9 single turnout (drawing number: special line 4194) is special line 4196-3.
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