When the operator sprayed the glue in the back of the mouth, the position of the glue was not controlled properly and the glue overflowed. <br>The operator is required to leave 5mm at the edge of the back mouth when spraying glue.
The position of the operator when spraying the glue in the back mouth is not well controlled, resulting in the gel spill.<br>Requires the operator to leave 5mm work in the edge position of the back mouth when spraying glue.
The operator did not control the position when spraying the glue in the back mouth, which resulted in glue overflow.<br>The operator is required to leave 5mm at the inner edge of the reverse mouth when spraying glue.