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The Car Valve Sheet is developed by first press-fitting a hardened metal alloy cylindrical piece into a cast depression above each eventual valve stem position. This is then machines in the conical-section surface to mate with a corresponding conical-section. It is simply cut into the cylinder head or engine block material. This can be easily positioned or machined in several ways without any distortion. It is ideal for preventing compressed gaseous bodies and gas from any leakage. In addition to this, it also helps releasing heat to the cylinder head in the valve and holds tight the mounting valve.