1.Standard: ANSI B16.9,ASTM B363,DIN 2.Grade: Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,G9, ... /2~24) 4.For Petrochemical Item Name HONGHUA Titanium Elbow StandardANSI B16.9,ASTM B363,DINGradeGr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9,Gr12SizeDN15~600 ... Order Quantity50 piecesPaymentT/T in advance or irrevocable L/C Seamless Light Weight Titanium Elbow ASTM B363 for Petrochemical