Fabricante de sellos de vástago de válvula | TONYCO puede suministrar muchos tipos diferentes de sellos de vástago de válvula en una variedad de materiales y tamaños
TONYCO can supply many different types of valve stem seal in a variety of materials and size. The products are made of high quality raw materials, which are purchased from the reliable, long-term vendors. The purpose of the valve stem seal is to prevent the oil from the cylinder head entering the combustion chamber. It plays a critical role in controlling valve lubrication as well as oil consumption. If valve stem seal fail, this will cause the engine to suck oil down the guides and into the cylinders.