... is Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9 3.Standard is DIN,GB,BS,ASTM titanium fastenersTitanium screw/nut/boltMaterial is Gr1 ... ,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9Standard is DIN,GB,BS ... according to customer’s drawings or samples4. titanium and titanium alloy bolts suppliedWe have the titanium operating licence.We are the manufacturer that special ...