With more than 20 years' research and production of the portable machines,such as pipe cutting & beveling machine and the Flange facing machine, AOTAI takes lead in applying hydraulic drive and servo motor to these portable machines, realizing remote control and ensuring the machine more powerful and stable. It is warmly welcomed by the end users and copied by other manufacturers.

With more than 20 years' research and production of the portable machines,such as pipe cutting & beveling machine and the Flange facing machine, AOTAI takes lead in applying hydraulic drive and servo motor to these portable machines, realizing remote control and ensuring the machine more powerful and stable. It is warmly welcomed by the end users and copied by other manufacturers.