we have the ASNU test machine to vigorously  test them before shipment ,
On the right is the  ASNU testing.please watch it.  
we make sure they are static ,and dynamic flow matched within 1%.
we also can give you data sheet too, Its useful for tuning.

All flow testing includes inspection for leaks,

Ohm testing, spray pattern, pulse operation, 
and flow rate verification.

 We can provide the  sample for you to test, and  I hope you can test our products.

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