... :100-4800mm 1)Name : Heavy Forged Carbon Steel Flange2)Material: Carbon Steel, Alloy Steel, Stainless Steel Carbon steel: AISI 1020,1035,1045,1046,GrD,Gr65,Gr50 ... Properties Test---Machining---Finish Parts Inspection---Surface Treatment----Storage----Delivery5)Quality Control: Impact Test, UT, And so on.6)Certificate:7 ... will try our best to satified you. Big Forgings Flange in Stainless Steel