The main material for carbon steel, stainless steel and alloy steel excellent quality,competitive price, ... ,ASME B16.47,DIN,JIS,GB,BS etc.2)Material:Carbon steel,stainless steel,alloy steel etc.3)Packaging Details:Wooden ... , RF, MF, FMF, TG, FF, SRF ETC.Ring joint flange,carbon steel flangeAPPLICATION: petroleum, chemical, electrical industry, construction. RJ flange