... TUV and ISO 9001 certificates 2) DIN/ EN1092/ ANSI B16.5/ UN /BS 4504 3) DN10~~DN3600 ... TUV and ISO 9001 certificates 2) DIN/ EN1092/ ANSI B16.5/ UN /BS 4504 3) DN10~~DN3600 4 ... ,alloy steel and stainless steel flanges.3.stand---ANSI,JIS,BS,DIN,UIN,EN,AWWA,API,MSS, ... size---1/2" to 60",DN15 to DN2000,15---5000mm5.pressure---150bls to 2500bls6.marking---according to customer requirements7.painting---yellow ...