Welcome to www.aakindustry.com
About us


Since its establishment 12 years ago, 6 first-line international brand importers have placed orders with AAK for 5 consecutive years, with a re-peat order rate of 62%.
Exported to more than 20 countries, AAK Hydraulic Valves used on "AIRCRAFT" have been supplied to Russian customers. 
68%+ of the high precision hydraulic valves exported from Ningbo Port come from AAK hydraulic valves.


In Ningbo area, if there is a Hydraulic Valve that even AAK team can not achieve, then you should not waste any more time in Ningbo!



 AAK Hydraulic Valve is the only one who can meet below 4 points at the same time in Ningbo area.
    • The on time delivery is guaranteed, try an order if you don't believe it.
    • Every batch of materials should be heat treated, never cut corners.
    • Every hydraulic component should be tested by pressure test bench, with test report and vedio filed.
    • Every valve should be tested 3 times, with test reports on records.
From your idea, to my design, my proofing, my quality production, we are more efficient than 90% of our peers.
6 first-line international brand hydraulic valve importers have purchased from AAK for 5 consecutive years.


6 first-line international brand enterprises import from AAK, because ease in heart.


Small MOQ, high precision, urgent delivery Hydraulic Valves, exported from AAK, because of our upright heart.


More than 80% of re-buy rate. 20% of our new customers come from the introduction of the old customers, or come to visit us on their own, because assured heart.


Equipped with Swiss imported machine tools, core materials are 100% imported, and capable of making various hydraulic valves with high precision and high stability. Our peers in Ningbo are generally difficult to complete such orders.


Can produce the high-precision hydraulic valve used in "aircraft"most of our peers can’t think about it, or can’t do it.


3 domestic design patents, 4 proprietary processing technologies and processes, and 80% of our peers can only make conventional products.


Our Technicians have been on duty for more than 8 years, and their proficiency is like a ruler. Most of our peers are about 3 years' operators.


In pre-sale, sale and after-sale, AAK give reply in 24 hours, offer solutions in 48 hours, and solve problems in 72 hours. Our peers dare to think and dare not to do it.


The quality warranty is 3 years. Most of our peers dare not think about it, let alone do it.




Seeing many people who make fast money, they always try to cheat in work and use inferior material, so that many customers have lost their money in business. Also seeing the second hydraulic valves sold at best quality price, which makes many customers lose the market. I have always warned myself that making hydraulic valves, I must not let my customers down and must let them to make money:


Most of our peers packaged the goods into master carton just after assembly; I must test the pressure, then dismantle, clean and reassemble, finally packaged into the master carton.  


Most of our peers have been using CNC lathes, and we have to equip Swiss high-end lathes.


Most of our peers used the hydraulic components purchased from outside directly, and we must test and then do our own heat treatment before moving to the next production stage.


Most of our peers change the place for the out processing accessories time by time, while we hold a heat treatment plant with more than 10 years’ experience, and have our own proprietary heat treatment process.


Most of our peers use the most common spring steel wire, while we import steel wire from Korea, and we designate a master to produce the spring, and it can be assembled only after 3 rounds of screening.


Most of our peers control the installation surface roughness Ra at 0.9-1.0, and we can achieve less than 0.8.




For 5 consecutive years, AAK produced goods for big brand customers, such as HydraForce, Yuken, Rexroth etc.


The so-called difficult products, at least we see more than you.


With AAK, you not only don't step on the pit, spend the same money, but also buy the hydraulic valve with better quality, service life and mirror effect.


AAK hydraulic valve, Any valve, Any One, Any Time, Any Where, just Safety.


Many customers have been following our hydraulic valves, and later many customers earned money, why? Whether you have figured out why or not, you should send an email to AAK.


Try a small order, even one piece. So far, there is no precision that AAK can’t achieve. 


If you have any suggestions or question for us.Please contact us.
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