... 2.Material is Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9 3.Standard is DIN,GB Pure titanium bolts and nutsTitanium screw/nut/ ... boltMaterial is Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9Standard is ... DIN,GBA . different inches and centimeters standardsB . can develop according to your drawings or samplesC . titanium and titanium ...