... B863, GB/T 3623--1998 etc. 3.Professional manufacturer & trader Titanium Elbow 1. It is application to fastening piece, structural grammar ... ,welded joint material and so on round wire.2. Material: Titanium Gr1, Gr2, Gr3, Gr4, Gr5, Gr6, Gr7, Gr9 ... obliged to you for your kind attention to our products! Titanium Elbow