... Seamless Tube for Medical UseStandardASTM B338GradeGR1DimensionOD3mm*Thickness 0.2mm* L500mmTechniqueSeamlessConditionAnnealed(M)FeaturesLow density, High specific strength, Excellent corrosive resistance, Rustless, Good ... ,ASTM B337, ASTM B861ASTM B338,ASTM B337, ASTM B862 ConditionAnnealed(M)Annealed(M)InspectionUltrasonic testing, Hydrostatic testing, Flattening testing, visual surface inspection ...