It is known that China is a country with rich natural resources and vast territory. Even though, the resource stock is declining in the growing process of every industry. Focusing on current resource lackage situation, recycling on resources attracts more attention from the public. Reproducing is one of the recycling measures demanding highly in techniques. This needs to be mentioned especially in machinery production industry because of the benefits it can bring upon the original productions and less damage to the original machines. This paper focuses on the remanufacturing of construction machinery hydraulic valves and its benefit. Remanufacturing construction machinery is an indispensable in the manufacture way of engineering machinery manufacturing, the remanufacturing of hydraulic valve is one of the important. In general, the working environment is very bad, such as soil dust, cold heat, various difficulties and hardships which caused serious influence on the engineering machinery service life, leading a large number of hydraulic valve failure every year. The related enterprises remanufacture batch of useful spares by recycling of waste hydraulic valves. By satisfying the demand, remanufacturing greatly reduces the cost of production, saving resources, and gains huge economic benefits.
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