1)size:1/2"-48" 2)service:OEM,design,buyer label 3)certificate: ... :DIN,ASME,JPI,ANSI,BS,UNI,etc Socket weld KF flange1)size:1/2" - 48"2)service:OEM, design service and buyer ... customers' require6)Pressure:ND6-ND100 (DIN), PN6-PN100 (UNI, EN1092-1), 5K-30K (JIS), 150lbs-2500lbs (ANSI) Our products are of ...