1.Standard: ASME B16.9,ASTM B363,DIN 2.Grade:Gr1,Gr2,Gr3,Gr4,Gr5,Gr7, ... ,Gr23 3.Size:DN15~600 (NPS1/2~24) 4.For Chemical HONG HUA TITANIUM ELBOW Product Name Titanium Elbow StandardASME B16 ... .9,ASTM B363,DINMaterialGr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9,Gr12,Gr23SizeDN15 ... or T/T in advance 45 degree Gr5 titanium elbow ASTM B363 for chemical industry