Functional class <br>skin class <br>assembled defective based <br>direction, based fixed <br>gap stepped class <br>leakage of Class <br>moment-based <br>component class interference <br>unnormalized data
Functional class<br>Appearance class<br>Poor assembly<br>Trend and fixation<br>Gap order class<br>Three leakage class<br>Torque class<br>Component interference class<br>Non standardized data