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2.a small amount ofsamples can be sent for free

3.best after sellservice 

Cooling and HumidifyingGolden Garden and Irrigation Tool

Speciality???
ThreadSize: 3 / 16; 10/24" optional filter
Orifice: 0.2mm, 0.3mm; 0.4mm and other size;  available forcustomization
Operating pressure: 2bar---7bar
Flow Rate : 8 cc/min -14 cc/min
Spray Angle: 30-50 degrees
Typical Applications: spray fan; low pressure foggeneration; humidification; cooling; greenhouse,garden andirrigation etc.