The meaning of ST1250-1000X(6+4+6):
ST means a conveyor belt with a steel cord core;
1250 indicates that the longitudinal tensile strength of the conveyor belt is 1250N/mm;
1000 means that the width of the conveyor belt is 1000mm;
6+4+6 means that the thickness of the upper, middle and lower covering layers are: 6mm (upper layer), 4mm (middle layer), and 6mm (lower layer).