... , 2.pressure:0.1,0.25,0.6,1.0,1.6,2.5,4.0,6.4,10.0,16.0, 3 ... , pressure:0.1,0.25,0.6,1.0,1.6,2.5,4.0,6.4,10.0,16.0,DN:10 ... treatment5.Surface finish: Painting, powder coating, plating, bluingor other methods based on customers' requirements6.Certificate: ISO90017.Engineering service: OEM and ODM ...