| Message: | At the beginning of this year, Timoteo emailed us to asked about the production time for 600 hydraulic relief valves, and it required that the quality and parameters should be same as those of the previous samples, especially that the valve hole accuracy must be 100% within 2μm. Timoteo is from Italy and has been cooperating with AAK for more than 1 year. After communication, we learned that the price of this hydraulic relief valve that was previously tested in AAK was 20% higher than that of another hydraulic cartridge valve manufacturer, so they did not purchase the larger quantity from AAK. However, the hydraulic relief valves purchased from another manufacturer have been complained by customers one after another. These hydraulic relief valves were used in shield machine. The valve hole accuracy of some of these hydraulic relief valves is over 2μm and caused equipment failure due to leakage.
Per the original manufacturer, this hydraulic relief valve has a very high accuracy requirement. It is not avoidable that a little proportion of the goods does not meet the accuracy standard, they can be replaced free of charge. But after more than half a year, the high-frequency replacement makes the customer unhappy. His boss asked Timoteo to replace the hydraulic relief valve supplier immediately, and the valve hole accuracy must be 100% within 2μm. Timoteo can only contact AAK, because during the testing stage, the valve hole accuracy of AAK hydraulic relief valves were all within 2μm. Timoteo also frankly told us that he should not have determined the hydraulic relief valve supplier blindly based on price only.
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