The rotational performances is excellent in all directions as a solid stand. It's suitable
for being used in curved bridge.
Through the rise prevention device, operators don't need have a rise prevention device.
As a dynamic stand, it's combined with the round roller, and pivot stand.
The rotation is possible in all directions by pivot. The low friction count of the roller
makes the movement quick. Through the movement restriction and rise prevention
device, operators don't need to have bridge fall-off facility and rise prevention device.
It's suitable for being used in large and intermediate bridge.