certificate:ccs.ks,iso9001-2009 1.type :flange,forged flange,plate flange2.size :1/2"--96"3.wall thickness :sch20-sch1604.standard :DIN,JIS ... :ANSI A105,Q235,16Mn6.connection: butt-welding7.quality :ISO9001-2008,KS,CCS8.applications: oil,gas,chemical,industry,electric power,boiler9.packaging ...