[Warning] 1. Before mounting the machine, inspect the exterior of the wheel for cracks, wrinkles, marks, etc. 2.Do not use flanges with deformation, scratches, dirt or rust on the contact surface of the wheel. 3.If the hole diameter of the wheel does not conform to the machine, do not force the hole or modify the hole diameter. 4 Do not stand in front of the direction of rotation of the wheel during test operation. 5.Wear protective equipment such as safety glasses and dust masks during work. 6.Do not touch the rotating wire wheel directly. 7.Do not exceed the maximum operating speed.