... 4)standard:DIN,ASME,JPI,ANSI,BS,UNI,etc Socket weld KF flange1)size:1/2" - 48"2)service:OEM, design ... or as customers requirementsRemarksWe also provide OEM service With advanced equipment, fine workmanship, complete quality control system, high quality products and ... future.Assure you our best services all the time. Socket weld Flange