13. What’s the major difference for ZG40 and B-ZG40:

1. the major motors are different: one is for 7.5KW ,and the other one is for 11KW

2. the stands are different
for B-ZG40, the stands will be more stronger
bec it can produce the pipes up to 63.5mm, thickness up to 2.0mm
 

3. the Frames are different, so the weights are different
     for ZG40: About 6.5T, for B-ZG40: 7T

4. As for these differences, ZG40 produces pipes up to 50.8mm, thickness up to 1.5mm, but B-ZG40 produces pipes up to 63.5mm, thickness up to 2.0mm