... according customer's drawwing Item NameTitanium FastenerMaterialPure Titanium and Alloy TitaniumGradeGr1,Gr2,Gr3,Gr4,Gr5(Ti-6AL-4V),Gr7,Gr9,Gr12, etc ... and rdeuce gallingQuality inspection conducted by QC before deliverySampling inspection for Chemical composition and Michanical properties like Tensile strength etcDimension measurements ...