Flanges: 1)Material:carbon steel(A105,Q235,A305),alloy(F5,F9,F11),stainless steel (304,316);2)Size:from 1/2"to64";3)standard:ANSI,JIS,DIN4)Market:Middle east,Southeast Asia,South America,North America,Asia;Our enterprise haved approved ISO9001:2000 Quality System Certificate,AD2000 in accordance with TUV CERT.Minimum order: according to detailed sizesSample: sample for free, but you should pay for the express fee for the samples.Delivery date: Within 30-40days after receipt the 30% payment in advance.