| Message: | A while ago, our Russian client Erop said that they have sent me a hydraulic manifold block sample, and need the hydraulic manifold manufacturer AAK to check if we can achieve valve hole accuracy within 3μm. I replied that the shipping cost is high, just send the hydraulic valve block drawing. However, Erop said that he had checked with several hydraulic manifold manufacturers and they all reported that the oil circuit holes were complex and the drawings were too complex, samples were needed. However, Erop was not willing to send samples to these hydraulic manifold manufacturers.
After further communication, it was found that a colleague of Erop tested this manifold block from another hydraulic manifold manufacturer. The accuracy of the valve hole is unstable, and some have exceeded 5μm. Now his colleague can't get it done with that hydraulic manifold manufacturer and can only seek help from Erop.
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