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QYSZIII type double-acting hydraulic drilling jar is a new hydraulic drilling jar with locking mechanism developed on the basis of the QYSZII type double-acting hydraulic drilling jar. Besides the advantages of QYSZII type, it also has the following advantages: 

1. The mechanical locking mechanism prevents unnecessary wear of the internal parts, and extends the service life. 

2. The mechanical locking mechanism is functional safety and reliability. The locking force is linear stability.

3. The mechanical locking mechanism can avoid the failure jarring caused by improper operation to make the operation more safe and reliable. 

In order to timely and accurately provide the products you need, please confirm the following when choosing jar products:
1. When ordering, please indicate the product model completely. (Please refer to the brochure for the specific product model.) If the product you ordered has been modified, we will supply the latest model without notice.
2. Unless otherwise directed, we will supply the product with our company's standard thread.
3. When ordering accessories and removal tools, please specify the model of jar, the name and the quantity of accessories and removal tools, and the past contract number. 
4. If you have any questions when choosing a product model, please contact us.
In order to timely and accurately provide the products you need, please confirm the following when choosing jar products:
1. When ordering, please indicate the product model completely. (Please refer to the brochure for the specific product model.) If the product you ordered has been modified, we will supply the latest model without notice.
2. Unless otherwise directed, we will supply the product with our company's standard thread.
3. When ordering accessories and removal tools, please specify the model of jar, the name and the quantity of accessories and removal tools, and the past contract number. 
4. If you have any questions when choosing a product model, please contact us.
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Tianhe Oil Group Huifeng Petroleum Equipment CO. ltd.