1:Flange size:1/2''-32'' 2:Pressure:150-900lb 3:Material:carbon steel 4:Standars:DIN,JIS,ANIS 5:special design aviliable HeBei BaiYi steel pipe manufacturing Co.,Ltd in China ,we can produce all of size flange,we can produce WN flange ,SO flange ,PL,BL,THRD flange ,the size we can do 1/2''-32'',the pressure can be reach 150-2500lb,we can as the DIN,JIS,ANIS,GB produce ,the special design can ...