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The reverse sealing performance of hydraulic check valve has always been the hard index controlled by AAK. AAK has its own technology and process. It strictly controls 3 checks in production to ensure no blind area for quality. The reverse sealing performance of AAK hydraulic check valve catches up with and exceeds 90% of its peers. The North Carolina hydraulic customer who just shipped in March recently placed a new order for Hydraulic Check Valves with new item number. AAK Hydraulic Valve has become his preferred manufacturer supplier for purchasing hydraulic check valves.

In March this year, Leo, a North Carolina hydraulic customer, delivered a batch of orders for hydraulic check valves in the forklift system from AAK, and the market responded very well. A few days ago, his customer had another batch of orders for hydraulic check valves with new item number and designated AAK to produce them.

Leo was surprised that his customer appointed AAK Hydraulic Valve factory to produce this order. Because the hydraulic check valves his customer purchased before hit a nail, later he changed the hydraulic valve factories one after another, wasting a lot of time and opportunities. The main problem with these hydraulic check valve manufacturers is that there is a small gap between the conical surface of the valve spool and the valve seat, and leakage occurs from time to time. The customer was impressed by the good quality of AAK hydraulic check valves shipped in March, so he asked Leo to assigned AAK as the preferred hydraulic check valve manufacturer.

The reverse sealing performance of hydraulic check valve is the most important index, and it has always been the hard index controlled by AAK. AAK has its own technology and process. Firstly, strictly detect whether the coaxiality of the valve spool and valve seat meets the parameter requirements. Secondly, check whether the contact surface between the valve spool and valve seat is damaged or
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