... ,and according to customers' requirements.3.Material:Carbon steel,45#,65Mn,stainless steel,brass,copper4.Finish:Plain;black; zinc plated(Cr, ... Usage: Our products are widely used in aerospace, automobiles, motorcycles,agricultural machinery,construction,transportation,electric power,electronics,chenicals,home appliances ... ,hoping eatablish the long-term cooperation with you! Stainless Steel Flange