Forest germplasm resources library promotes effective improvement of forest quality

Forest germplasm resources are the basic resources for the development of forestry productivity and an important strategic resource for the country. Find out the types and distribution of forest germplasm resources , and use the forest germplasm resources to do a good job in the protection, development and utilization of important resources, which will help promote the effective improvement of forest quality. At present, in the process of germplasm conservation, all localities attach great importance to the construction of forest germplasm resources. The more resources are established, the more germplasm resources are protected, and the forest development has more developable. Quality resources.

The importance of forest germplasm resources is very profound for experts engaged in agriculture and forestry breeding. Forest germplasm resources are the original materials for the selection of forest trees and are the basis for genetic diversity and species diversity. Lack of excellent forest germplasm resources to support, then it is like "the clever woman is difficult to be without rice", more excellent forest species will be difficult to develop. At present, with the change of environment, many forest germplasm resources have encountered survival problems. In this context, the use of forest germplasm resources to preserve, has become a reliable solution to rescue and continue these excellent resources.

The forest germplasm resource bank is the collection and preservation base of forest germplasm resources, the breeding and research and development center of forest trees, the cooperation and exchange platform of scientific research, the demonstration of improved varieties and the display window of popular science education. It realizes the scientific protection and evaluation of forest germplasm resources. It is of great significance. The application of forest germplasm resources bank avoids the disappearance of wild forest germplasm resources, and provides a long-term preservation of “safe shelter”. On the other hand, through the use of modern information technology, forest resource information management has been established. The system is effective, and the scientific and effective supervision and rational use of forest germplasm resources is more important. It can be used as a basis to promote the development of forestry and improved forest quality and lay a solid foundation for maintaining national ecological security and sustainable economic and social development.

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Oil Pan Gasket function is to seals the oil pan to the bottom of the engine.
Oil Pan gasket Material: Cork, Framework Rubber, Metal Rubber. Sealing Paper,

1 CORK: Cork material is the earliest used in the oil pan seal. The most widely applied, Is a highly applicable sealing material. It is feather is: simple process, raw material is simple and easy. Low cost. 
But a wide range of apply does not mean it`s fully suited to the oil pan seal.
Its disadvantage is also very obvious: Easy to leak; Easy to pressure explosion when install the screws. 

European and American manufacturers have no longer use this material many years ago, but the aftermarket still have a huge inventory fort this cork oil pan gasket. 

2 RUBBER: Rubber oil pan gasket is widely used in the foreign maintenance market, It`s a very nice sealing material, The specific material can be: NBR, ACM,FKM. European cars prefer to use rubber oil pan gasket, such as Mercedes-Benz, Audi, and Volkswagen and so on.

3 Sealing Paper: Sealing paper oil pan gasket is a new material, it`s performance stable, good sealing effect, Suitable for flat sealing. The US repair kits form TTK,ATC,TRANSTEC etc- are mostly use this sealing paper material.  

4 Metal Rubber: Also named as module rubber, hard rubber, its use metal as a skeleton and coated with rubber outside, representative one like 4T65E, This is a new trend of the oil pan gasket, It combines the advantages of rubber material and avoid the disadvantage of not easy to fix. At present United States almost all new transmission box is use this metal rubber sealing gaskets. This is also widely used in the engines.


Oil Pan Gasket

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