product name : alloy steel flange. Standard:ASTM,ASME,ANSI,JIS,,GB. size:1/2"--48" material:stainless steel,carbon steel product name : alloy steel flange.Standard:ASTM,ASME,ANSI,JIS,DIN,GB.size:1/2"--48"material:stainless steel,carbon steel,alloy steel.technic: forgedapplication:petroleum,electric power,chemical industry,natual gas,ect.model number: SO,WN,PLpacking: wooden case,pallet ,or as the ...