in our production process We found that light did not shine through the back box. causing the weld to not stick. This is not acceptable (NG) as shown in the image below.
During our manufacturing process, we found that the light did not pass through the rear box, resulting in non stick welding. This is unacceptable (NG). As shown in the following figure.
In our production process, we found that the light did not penetrate through the back box, resulting in non-stick welding. This is unacceptable (NG), as shown in the figure below.