... .Material:Alloy steel 3.Certification:ISO9001:2008,TUV 2010 ,PED2010 wide flangeMainMaterialStainless steel,Carbon steel,Alloy steelWN/BL/PL/SO/SW ... customers requirements.Face typeFF, RF, LJ, RTJ, TG,T,GCertificateISO9001:2000, TUV ,PEDInspectionin-house and third party