... (WN flange,stainless steel flange) 1)Name: Weld neck flange.Forged steel.2) Size: 1/2" to 24", ... per customers' requestsWelding Neck Flange (stainless steel flange,WN flange),weld neck flange.Certification: API 6D, API 607, CE 1277, ISO ... 901:2000, ISO 14001 Weld Neck Flange (WN flange,stainless steel flange)