The distance between its wheels is easy to adjust and can be used in many kinds of I-beam.
It's so high transmission efficiency that do need less output.
It can be drived in a small turning diameter.
The hinge linkes the left and right side plate to guarantee equal force.

Don't load exceeding the rated capacity of the hand trolley.
To avoid accidents working or passing under a load is strictly forbidden.
Regularly fill the grease on the bearings and rail surfaces. Meantime check whether there is any loose on the firmware.
If there are any anomalous situations, stop using the product immediately and Check the cause to remove it .
Regularly maintenance is needed.

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