... , threaded, socket welded, blind. 1)Name: Slip On and Threaded Flange .2) Size: 1/2" to 24", larger sizes upon request ... or as per customers' requestsSlip-On and Threaded Flange (Forged flange,stainless steel flange): SO flange.Certification: API 6D, API 607, CE 1277, ISO ... -577-5690 1998Fax: +86-577-8689 9568 Slip On Welding Flange (Forged flange,stainless steel ...