... Weld Neck Carbon Steel Flange:1.Type:Carbon Steel Flange2.Material:Carbon steel3.Certification:ISO9001:2008,TUV 2010, PED20 MainMaterialStainless ... ,DIN86030BSBS10,BS4504 SANI1123 1000/3 1600/3 2500/3 T/D T/E T/FJIS5K,10K,16K,20K,30K,40K ,JIS B2220,JIS ... , LJ, RTJ, TG,T,GCertificateISO9001:2000, TUV ,PEDInspectionin-house and third party Production Process: 1.Material 2.Material Sectioning 3. Heating 4 ...