... Product principal export to foreign countries,which are mainly used for export to Europe,America,Japan,Southeast Asia,Middle ... benefit. We can supply abve-nentioned standard flanges of DIN,ANSI,BS,JIS,UNI,NS and AS,GB,HB ... Product principal export to foreign countries,which are mainly used for export to Europe,America,Japan,Southeast Asia, ... benefit. Please contact us any time. Thank you! DIN flanges