it will depend on the pin functions of the DB25 on the Chinese machine being the same as defined by the planetcnc motion controller
Do you have any details of the pinout for the cnc machines DB24 connector ? or a link to the manual ?
I expect you will find pins 2 to 7 will be correct for the 3 axis step and direction
but you may find the mk3/4 enable out on pin 1 is wrong and needs to connect to another pin on the machine
a modified printer cable could be a solution
John