| Message: | For a hydraulic cartridge pressure control valve with 3 high accuracy requirements, Jack spent 2 months on 3 cartridge valve manufacturers but the samples from all 3 factories failed. AAK completed the hydraulic cartridge pressure control valve with the main hole length diameter ratio of 10 in 25 days, and the main hole diameter tolerance is within 0.005mm, the cylindricity is 0.004mm, and the surface roughness is Ra 0.2μm.
Jack, from Melbourne, has been engaged in the procurement of hydraulic cartridge valves for nearly 3 years, with favorable wind and favorable water. Recently, he was trapped in troubles on the order of a hydraulic cartridge pressure control valve. His customer has strict requirements on the diameter tolerance, cylindricity and surface roughness of the main hole of the hydraulic cartridge pressure valve. He specially arranged 3 cartridge valve manufacturers to make samples at the same time. After 45 days, samples from only 1 of the 3 factories met the customer's requirements. However, in the first small batch order, the qualification rate of 120 hydraulic cartridge pressure valves was less than 60%. The customer requested to replenish the products, but the manufacturer had been prevaricating. Jack realized that he could only retain the customer by replacing the manufacturer of the hydraulic cartridge pressure valves.
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