Threaded flange: 1.Material:carbon steel,stainless steel and alloy steel ... ASME,JIS,DIN,BS,GB Threaded flange:Details of the Product:Hebei Hanghao High-pressure Flange Pipe Fitting Manufacturing Co.,LtdProductsAll ... petroleum, chemical industry , electric power , metallurgy , thermodynamic fields, water supply engineering , steam heating , hydroelectric power station and long pipe line transportation ...