Is there a gasket on the valve cover of Skoda Haorui engine?

This is a rubber sealing ring. After removing the valve chamber, you can see that each spark plug sleeve has a sealing ring to prevent oil leakage. Valve cover pads may be more meaningful. The main problems that can be solved are engine aging, the piston ring is not tightly closed, the exhaust pressure is too high due to air leakage, the valve cover gasket is not tightly sealed or the oil quality causes the adhesion of the carbon-deposited piston ring to be too large, and the stress is uneven when installing the valve cover.