The image obtained as a result of engraving glass surfaces is called grooving.
 
Straight and shaped channels can be applied to glass and mirror surfaces in the interior decoration and furniture industry.
 
Shaping the glass surface by carving it at different depths along a line is called straight channel opening.
In the straight channel opening process, channel stones are fixed. The carving process takes place by moving the glass in a line over the fixed channel stones.