| DIFFERENCES | Illustration | Comparison explaination | |
structural optimization | Others | ![]() | Friction visible. The paint will be worn, unsightly and increase the cost |
YG self-design | ![]() | Friction invisible. Protect paint. | |
structural optimization | Others | ![]() | Large gap. Easy to pinch. |
| YG self-design | ![]() | Small gap. | |





