Titanium disc Gr1-Gr19 ASTM B381 Titanium disc Gr2 Strictly implements the standard specifications of ASTM B381,ASTM F67,ASTM F136, ASTM F1295Grade: Gr1,Gr2.Gr3,Gr4,Gr5,Gr6,Gr7,Gr8,Gr9,Gr10,Gr11,Gr12,Gr13,Gr14,Gr15,Gr16,Gr17,Gr18,Gr19ProductODIDHeightGradeSpecificationTitanium Discs150~700mm/35~110mmGr1,Gr2,Gr3,Gr4,Gr7,Gr12,Gr23AMS4928 ASTM B348 ASMESB348 ASTM B381Titanium Rings50~3000mm30~ ...